As she made the short drive to the Red Hen, Wilkinson knew only this:
She knew Lexington, population 7000, had voted overwhelmingly against Trump in a county that voted overwhelmingly for him. She knew the community was deeply divided over such issues as Confederate flags. She knew, she said, that her restaurant and its half-dozen servers and cooks had managed to stay in business for 10 years by keeping politics off the menu.
And she knew - she believed - that Sarah Huckabee Sanders worked in the service of an "inhumane and unethical" administration. That she publicly defended the president's cruellest policies, and that that could not stand.
"I'm not a huge fan of confrontation," Wilkinson said. "I have a business, and I want the business to thrive. This feels like the moment in our democracy when people have to make uncomfortable actions and decisions to uphold their morals."
As soon as she walked into the restaurant, Wilkinson saw that there had been no mistake. The Red Hen is no bigger than some apartments, and the group table was impossible to miss: Sanders in a black dress, her husband, three or four men and women of roughly similar ages, and an older couple.
"They had cheese boards in front of them," Wilkinson said. Like any other family.
The kitchen was already preparing the party's main course. Wilkinson interrupted to huddle with her workers.
Several Red Hen employees were gay, she said. They knew Sanders had defended Trump's desire to bar transgender people from the military. This month, they had all watched her evade questions and defend a Trump policy that caused migrant children to be separated from their parents.
"Tell me what you want me to do. I can ask her to leave," Wilkinson told her staff, she said. "They said yes."
It was important to Wilkinson, she said, that Sanders had already been served - that her staff had not simply refused her on sight. And it was important to her that Sanders was a public official, not just a customer with whom she disagreed, many of whom were included in her regular clientele.
All the same, she was tense as she walked up to the press secretary's chair.
"I said, 'I'm the owner,' " she recalled, " 'I'd like you to come out to the patio with me for a word.' "
They stepped outside, into another small enclosure, but at least out of the crowded restaurant.
"I was babbling a little, but I got my point across in a polite and direct fashion," Wilkinson said. "I explained that the restaurant has certain standards that I feel it has to uphold, such as honesty, and compassion, and cooperation.
"I said, 'I'd like to ask you to leave.' "
Wilkinson didn't know how Sanders would react. She said she didn't know whether Trump's chief spokeswoman had been called out in a restaurant before, as the president's homeland security secretary had been days earlier.
Sanders' response was immediate, Wilkinson said: "'That's fine. I'll go.'"
Sanders went back to the table, picked up her things and walked out. The others at her table had been welcome to stay, Wilkinson said. But they didn't, so the servers cleared away the cheese boards.
"They offered to pay," Wilkinson said. "I said, 'No. It's on the house.' "
At the end of the shift, Wilkinson said, staff members left the usual overnight note in the kitchen for the morning manager: a problem with the credit card machine. Restock vodka and tequila.
If you've ever heard the term "to 86 someone," it comes from the restaurant industry - code for a table eviction.
"86 - Sara Huckabee Sanders," read the note, below the reminder to buy more Pellegrino.
One of the servers photographed the whiteboard before going home on Friday. He had posted it to his public Facebook wall by the time Wilkinson woke up on Saturday.
For all the angst that evening, Wilkinson said, everything had taken place with decorum. She had been polite; Sanders had been polite; the press secretary's family had been polite as they followed her out the door.
Not so much the rest of the world, as it discovered Red Hen waiter Jaike Foley-Schultz's post: "I just served Sarah Huckabee Sanders for a total of 2 minutes before my owner asked her to leave."
A fountain of alternately celebratory and outraged comments gushed from Foley-Schultz's Facebook wall into the Red Hen's social media accounts, then its Yelp review page.
Five stars: "Thank you for refusing to serve a person who lies to the American people for a living."
One star: "They made some snide remark about a 'spit souffle' for the Florida nazi.'"
Between the fury and fawning of 2000 people who almost certainly had not eaten at the restaurant, the Red Hen's Yelp reviews almost instantly averaged out to two-and-a-half stars. Another Red Hen in Washington was at pains to make clear that it had no affiliation with Wilkinson's restaurant.
And that was before Sanders confirmed the story in a late-morning tweet.
"I always do my best to treat people, including those I disagree with, respectfully and will continue to do so," the press secretary wrote. "Her actions say far more about her than about me."
Added Sanders' father, forkmer Arkansas Gov. Mike Huckabee, on Twitter:
Wilkinson doesn't know where all this will leave the Red Hen when the news coverage dies down - or even when it opens again for dinner Saturday, for that matter. In a quick Facebook scan in the morning, she learned that people are already calling for protests outside the Red Hen, hashtag #MAGA.
As she spoke to the Washington Post, Wilkinson was on her way to a Main Street festival, which she helped organise under one of the other hats she wears around town, besides politically conscious restaurateur.
She didn't know what the reception would be like among her neighbours.
"This is a small enough town, and we're known," she said optimistically. "This is not going to be a giant surprise to anyone."
Meanwhile, "Red Hen" was trending toward the top of Twitter - 75,000 mentions within a couple hours of the first news stories.
"Whatever happens, we will soldier on," Wilkinson said. "Absolutely, yes, I would have done the same thing again.
"We just felt there are moments in time when people need to live their convictions. This appeared to be one."