I’d be taking pictures of these advertisements in San Francisco.
The MINI Cooper billboard with the electronic readerboard above a picture of the car. It’s just before the Bay Bridge entrance eastbound. Turns out that they are made to display messages to actual MINI owners who are driving by. Slick.

I also like the Scion billboards I’ve been seeing around town. The one I like right now features a picture of a car 90% of us would find entirely ugly, and the copy reads “%#!@ THE JONESES.” I may not like those cars, but there are a lot of people who do and I am sure they appreciate that billboard.
Lastly, there was a Chevron billboard just off the 9th street / Civic Center exit. It was well placed directly behind a Shell station. It reminded me not to buy inferior gas. Nice media buy.