I wouldn't rule out caltrain. It doesn't run that often on weekends, and you will have to walk or whatever to get from the caltrain station to the venue, but s

I wouldn't rule out caltrain. It doesn't run that often on weekends, and you will have to walk or whatever to get from the caltrain station to the venue, but since it's a 12-hour party, you can probably deal with not getting there at the exact minute that you'd prefer. Plus you only need to take it down since Joel promised to get you a ride back.