I wonder where that person lives. I bet most of the bumper stickers are going to rural areas, where you don't have much contact with the urban jungle and the apes that live there!
I'd say for this election, you're asking for trouble if you put a Palin/McCain sticker on your car in the urban areas!
Lots in Orange County and San Diego. Some in Sacremnto area, a few in LA and the Bay, lots in the central valley and up north.