I'm torn about leaving for BayCon this afternoon vs leaving very early tomorrow morning. Leaving today would probably get me an extra 4-6 hours of con and an extra 6-8 hours of sleeping in the car. I may try to call up the hotel soon and see if they've got any rooms available for saturday night. I'm sure they've been solidly booked for awhile, but they always have cancellations at the last minute, and if you manage to ask at just the right time you can snag the free rooms.
If i can get a guarantee that i'll have access to a real bed and my own shower for one night, rather than sleeping in my car and having to beg borrow or steal shower access from somebody (probably the gopher suite) then it would make heading up today a lot more attractive.