I need to store 2 carry-on sized bags near a Bart station in San Francisco, need a suitable public locker.

I need to store 2 carry-on sized bags near a Bart station in San Francisco, need a suitable public locker.?
I need to kill 3 or 4 hours in San Francisco before my red-eye flight leaves, but the only BART station in the city with lockers is Balboa..and there are only 12. I need a public locker big enough to hold 2 carry-on size bags near a BART station.
San Francisco - 2 Answers
Random Answers, Critics, Comments, Opinions :
1 :
I would take the Bart to the airport and check your bags in - then go kill time in SF. I think that you will find it almost impossible to store 2 large bags anywhere.
2 :
go to a hotel near where you will be killing time and have your bags checked by the doorman. they'll hold them for a few hours. i would trust that more than a BART locker.