"I said to the clerk, 'please tell me you have my dog.' The clerk says 'no, she left about four, four and a half hours ago,'" said King.
Her and her husband spent the next night searching the woods for her dog but with no use.
A thunderstorm made this difficult and, King thought, might have scared the dog further away. That was just the first of many nights in a hunt that saw the couple posting 500 fliers and surfing the web for missing pets Facebook groups. The couple also set trail cameras in parts of the woods where Katie the dog might be lost.
Then after almost 60 days of perseverance King received a phone call.
A man from Montana was calling in response to one of her fliers, saying he had seen a dog matching the description.
King went alone to meet the caller and have yet another search for the dog.
After a stroll around the area she spotted her dog in the bushes. After 57 days apart Katie came straight to the call of her name.
"You know, you love your dog so much and you just have hope, and you know she's out there searching for you," King told CNN. "You just can't give up."
Having set up a social media page to help track down the missing dog, King posted a thank you to all the 183 members who had helped look for the dog:
"I truly appreciate everyone whether I met you, you posted, shared, hung flyers or just gave us encouraging words to continue on. I love and read all the text and messages. They are held in our hearts. Thank you, the king family," she wrote.
Shortly after an emotional video was shared of Katie the dog being driven back from her time in the woods and finally reunited with the rest of the family.