Hehe, check-out ReserveAmerica for SF, Pacifica is close-in and public transportation (BART, buses, Uber, etc.) is great. Downtown SF has buses and cable cars and a little walking is always good (e.g., between Chinatown and the wharf) and being a local, plan on at least 3 days! It's a shame to miss all the fantastic things in SF - and if you DO plan on visiting, make your Alcatraz reservations [http://www.alcatrazcruises.com/] weeks
before you plan to be there!