Those cars are usually Volvos. I used to live in Davis, CA, and am now in a community of Davis exiles living in Free Dixon, but I venture behind enemy lines when we want London Fish and Chips, or to go to a movie. I saw a Volvo in Davis the other day that had a SIGN on the back window that said, "Regime Change Begins At Home." Har-har-har... I flipped the guy off, but then thought perhaps he's thinking "Gray Davis..."
Anyway, it's because of these nimrods that I bought a sticker from 1984 that says, "President Reagan: Bringing America Back", slapped it on my 1991 pickup truck, and drive through Davis with much joy and glee. Honk and wave if you see me on the streets.
I'll keep an eye out for you. Had my Simom sticker on for 6 months and relished going into town.