i was only half-serious.
but - i had a bike stolen from me a couple of years ago (non-motor-driven). i had a lead and the police had neither the resources nor the interest in helping me.
fortunately, i bought the bike back really cheaply from some guy that bought it for even more cheap and didn't have to put myself in any sort of danger to get it back.
hopefully (although $$$-wise it's not much of a difference) the police will take it a bit more seriously, but, not to trivialize a situation that really sucks, the police have more pressing matters in the bayview (and san francisco in general).
i would also recommend contacting craigslist (who should have the the email address and IP address).
please let us know how it goes claudia. best of luck.