Found this on Stay Free ! Magazine
Rebar Website: http://www.rebargroup.org/projects/parking/Rebar, a group from San Francisco, has done what I have wanted to do for years - turn a downtown parking spot into a park. It's like Reclaim the Streets, but not as loud. I say I've wanted to turn a parking spot into a park (but I guess I didn't want it enough to actually get it done). So, Kudos to Rebar. Even if it only existed for 2 hours. Now who's going to do the permanent guerilla install?