I don't agree with Critical Mass' message, but this is definately the wrong way to counter that message.
Found this article -
http://www.nytimes.com/2011/03/03/wo...er=rss&emc=rss
Apparently he has told people he was waiting for the bike riders to pass him by, and they were riding by and scratching up his car.
If that happened to my Camaro, I don't think I'd do what he did. At least, I hope not.