But she found it "funny and relevant" and snapped a photo to share with her friends before it soon went viral.
The sign read: "You are picking up your child! GET OFF YOUR PHONE!!!! Your child is happy to see you! Are you not happy to see your child??"
"We have seen children trying to hand their parents their work they completed and the parent is on the phone.
"We have heard a child say 'Mommy, mommy, mommy..." and the parent is paying more attention to their phone than their own child. It is appalling. Get off your phone!!'
Mazurkewicz told KARE11: "I think that it needed to be said, that it's a good reminder to all of us. The daycare is awesome, they are very loving and obviously have the best interest of the children in mind."
Hundreds of people chimed, expressing their approval of the message.
Tanisha Monroe, however, pointed to the hypocrisy of the commenters, writing:
"Everybody is complaining about how cell phones are such a nuisance while they're on their cell phones."
Other parents pointed out that they were likely hard at work. Lisa Davis-Kemp said: "Or could it be that you're self employed, dealing with clients, sorting out problems????
"But no I'll put down the phone, lose clients and the bills won't get paid!!!!! You can look at the kids work when you get home!!!! Jeez some people are a special kind of stupid!!!!!"
Others took issue with the way the message was relayed, with some calling it rude.
Alexia Nicki Nichole wrote: "I'm sorry, I'm going against the status quo and saying this was rude and there is a better way to address this than to make EVERYONE feel like they can never use their phone when it's probably the repeat offenders that need to be addressed.
"Someone could have family in the hospital, waiting for news....you never know. People are quick to be passive aggressive and slow to directly address the real problem."