If anything under 950 is a misdemeanor and San Francisco isn't pressing charges on anything that isn't a felony, it's effectively legalized theft. You don't need to rob anyone if you can walk into any store and take whatever you want and the police do nothing about it.

Watch some recent episodes of Soft White Underbelly with homeless people in SF. It will really open your eyes to how much the problem is the cities disinterest in doing anything at all to fix things. All of their 'fixes' are really just enablement.