There's no way you're going to live in the SF area, have the Big One hit, and be fully prepared. Personally, I would move.

Even if you were in the area with your undamaged vehicle, you won't be going anywhere. Nothing will be going in or out of there by ground for quite a while. I can't even visualize feeding, watering and medicating (by air) 16,000 people per square mile (well, the survivors, anyway).

Sue