I've been living in Fairfax for about a year and a half as well...I see them around ALL the time. I have yet to be pulled over by one (knocks furiously on wood). I speed a little, like everyone else, but I'm stock as well and the car is black so the only thing really making me stick out is the wing
Safest county in America? I'd buy it. Just last year the FIRST EVER cop killed in the line of duty occured when some teenager went crazy and entered a police station firing randomly. It's mostly upper-middle class since it's so expensive to live here, so not alot of gang/drug activity.
And I got pulled over in my old civic...I showed him my boobs and he just looked at me funny. Guess he was not a fan of my hairy nips.