Apparently. Haha. Yeah, yeah, this is pretty clever for the first 3 times you see it. Then I'm sure everyone will go right back to ignoring the signs and rolling through them. Still, pretty funny. I see they steered clear of the clichés and didn't do a "collaborate and LISTEN" or"Hammertime!" sign. Which is too bad.
Sowellman from Flickr reiterates:
"This was one of 50 signs erected in September 2007 in Oak Lawn, Ill., a south Chicago suburb. The mayor was tired of people cruising through stop signs and thought maybe the signs would bring added compliance. At the end of April 2008, the Illinois Department of Transportation ordered the signs removed, saying they violated a federal sign law and their presence could jeopardize federal grants used for road projects."(From Truemors, Sowellman's Photostream, Chicago Tribune Op Ed)
PS: Happy Cinco de Mayo!