Very clever. I just ignore the clowns, try not to get Road Rage. I live in the SF Bay Area so I see these moronic bumper stickers all the time. I want to make one up that says..THE SIXTIES ARE OVER--GROW UP. I know my truck would get seriously messed up by the "tolerant" libs.
The best and most enjoyable thing to do is to put your "60's are over" or a Bush or W bumper sticker on THEIR cars. Preferably where they can't miss it.