sorry to hear the bad news Derk. It totally sucks when crap like that happens.
Nowadays, you really have to not only get ready for a little trip but you have to be sure you have a safe spot for your stuff. From what I've heard, you need to make sure you have a good lock on your trailer at a couple of the marina's at Berryessa. A lot of trailers have been unhitched and towed off from there.