Wait, Is The City Being Sarcastic... Or Is It Really Fining Silly String Users "$1,000"?

Sign posted in Hollywood: You run the risk of being fined $1,000 if you squirt silly string in L.A. on Halloween. Or do you? The sign's strange use of quotes makes it seem as if the city is pulling our leg -- it's a "$1,000" fine for the "illegal" use of silly string. Wait, does the city not know for sure?

Meanwhile, I know what I'll be doing at exactly 12:01 p.m. on November 1st!