Convince your uncle that it's imperative that you keep you car in the garage for just that week
Whenever I visit my friends in SoCal or the bay area proper, I always throw my killswitch and I try to get them to sandwich my car between theirs, so at the very worst they could jack 2 of my rims and my sound system, and some misc engine parts.
I'm very paranoid about my baby, and so far it's paid off.
And, unfortunately, in some parts of the bay, an alarm and an autolock wont do shit if they want your car

It will just make the job take 4 minutes instead of 2