This is just continued harassment by the police of cyclists all over the city. They have been totally embarrassed by the incident in Times Square and have been all over the city going after the cyclists for every infraction, warranted or not. They'll ticket you for going too slow, too fast, going over an imaginary speed limit, going through a red light on a road closed for cyclists. They are waiting there to do it.
I'm not even sure Bloomberg could stop the harassment, and I'm not sure he wants to. He should have told the police in no uncertain terms that the type of behavior exhibited in Times Square has to stop, but he hasn't. He just blames it on one rogue cop.