Reader Aimee Ellis spotted this yesterday:

WHAAAAAAAAA? Have you already seen this car around town? Pretty HILARIOUS.

On her personal internet weblog, she adds:

I’m speechless. Yes- the back of the car says “STAY BROWN LA MISSION”. I have a few questions for the driver of this car if anyone knows who it is:
1) Is this an announcement you are making as the owner of this fine vehicle?
2) If this was not done on your own accord, do you know WHAT the hell you did that resulted in this being tagged onto your car?
3) If this was in fact retaliatory do you feel that you have now learned your lesson?
4) Did your co-workers / neighbors / friends see your car, and if so did they laugh at you?

Dunno.  Cannot imagine that anyone who owns a “Smart Car” would voluntarily spray “STAY BROWN” all over their hatch.  Seems like this is a Noe Valley vehicle that parked on the wrong side of Mission St. on a trip to Range.  Either that or we are just being viral marketed too.