Hi. Any suggestions for a reliable (and affordable?) way to get to SFO from Oakland hills for family of 4? Flight check-in is at 4:30 AM for 6:30 AM flight to Newark. So far the affordable but not very comfortable option I found is taking last BART from Rockridge at 12:30 arriving SFO 1:30 and sitting around the rest of the night at SFO. 1-way car rentals runs about $140 vs. $35 for BART. Thanks!