I used to live right near Union Square in SF (the heart of downtown). Police are prevented from enforcing laws because of the constant backlash and outrage from the very vocal, but minority of people. I never understood this ideology of anti-police and laws that seems to permeate the bay area. Eventually after 5+ years I decided I'd had enough and moved out of SF and California for greener pastures and couldn't be happier. "You reap what you sow."