Today, I went to lunch with my friend Kira. We were walking towards this little outdoor lunch spot near work and heard a bunch of noise. I said, "Sounds like a protest!" Sure enough - People were protesting BP, Big oil, and driving cars.
Of course, since SF supports peaceful protest, cops were walking WITH the protestors.
I did find it ironic that the protest was against oil & cars yet police CARS were following the protestors.