Hi Courage,
I live in SF and I go to AA.
There is a place called Ariana Cafe in the Tenderloin (a less sketchy part of it) that has meetings all day and usually are pretty good.
The other places I'd recommend would be Nu Outlook in Pacific Heights and The Dry Dock in the Marina.
If you look at aasf.org you'll find all the listings.
These three places all have meetings pretty much all day and night.
Feel free to PM me if you'd like more detailed feedback.
Enjoy your stay here.