I went for a bit of a walk today in my neighborhood. Here are some of the signs I found. Not so much transit, but planning related. The most interesting one to me is the anti-google sign. I've seen them a number of times, and have heard complaints, not to mention seen how expensive housing has become in the neighborhood in even the three years I've been here. In any event here are some photos:
Water Department Cover

The Google Bus Stop. At the place where Google kids hop on the bus, someone painted this into the concrete. It says "Trendy Google Professionals Help Raise Housing Costs".

Obamaism

Vegans for McCain

Stop the War, March 19th

Mr. Seahorse Knows That No One Is Illegal

There were also some interesting signs and murals:
Good Fricken Chicken

Emmy's Spaghetti Shack. Get the Spaghetti and Meatballs...mmm

Dewar's Ad

I'll post more interesting things I found later, but I thought the signs and stencils were funny.