I'm in your area. Paid off slingshot and have full coverage for $575 a year with State Farm. You don't want liability only.I just got a quote from Progressive Northern California Bay Area
$3000 per year but if the SS is completely paid off then they will let you only cover for liability which is around $500.
They also state that if you try to get a loan to finance a SS they will require something called and "comp and collision" coverage which is why its $3k
Maybe someone from the Bay Area can chime in with their rates because if that's the case I can't get a SS until I can pay in full on the first day. bummer!