I've only seen one in my neck of the woods. It had a union sticker as well.
Some guy called in on the local talk show, railing against "that Commie in the white house."
The link that Carl provided is to a Yahoo news story, that Romny leads Obama in Florida by 6 points. The comments are littered with Ronbots..
"There's only one man who can solve our problems, and that's Ron Paul!"