One sign even appeared in front of Chicago's Trump Tower.
Mysterious parking signs reading “No Trump Anytime” appeared across American cities Sunday.
Read: Trump Reveals His New Nickname For John Kasich
The signs were crafted by street artist Plastic Jesus to show his disdain for Donald Trump. They appeared on traffic posts in New York, Chicago, Los Angeles, Chicago, Miami and Washington, D.C.
One of the signs, which were installed in high traffic areas, was even placed in front of Chicago’s Trump Tower.
The enigmatic Los Angeles-based street artist posted the images on Instagram.
Many pedestrians did not notice the signs at first since they blended in so well with the various metropolises atmosphere.
Those that did notice began posting photos on social media using the hashtag #NoTrumpAnytime.
Plastic Jesus told The Daily Beast on Monday: “I’ve been thinking as an artist and a street artist of what I can do in terms of a piece that focuses on Trump. I didn’t want to be frivolous with it. I wanted to find something that would have perhaps a deeper meaning.”
Read: Ted Cruz Lookalike Says She Hasn't Even Heard Of Him
The artist relied on volunteers to post the signs across American cities.
“I left it up to a group of very able volunteers who were keen to help me,” he added.
He hopes the signs makes people of aware of what kind of presidency Trump would have should he be elected to office in November.
Watch: Former 'Apprentice' Contestants Say Trump Isn't Worth of Presidency