If you are in the north bay, open a mailbox at the healdsburg ups store and register the car there. Once you smog once to register the car initially, you don't have to after that in the years to come.
Thats a really good idea to get a UPS store address. I was going to use my father in laws address in humboldt but thats quite a drive if i need to get ahold of DMV paperwork quickly.