Civic Center garage, take elevators down to enter. The truck is located in the reserve area, first floor, by the entrance. Reserve spot 5. May have to move a cone to park back in the spot if gone for a while.
Closes at midnight. Opens at 6am during the week, 8am Sat, and 9am Sun.
There's a white monthly card in the center console to badge in and out of the garage along with the key in a pouch, please return the key to pouch when done so the battery doesn't die.
What works best, at least for me, to unlock/lock the vehicle is to stand by the elevator or stairs. This is where I get a signal. Use the app to unlock or lock, then can hear and see the truck flash, allowing you to get in. (to pick up a signal quicker I will put my phone in airplane mode then back again so it searches for a new signal).
More details about the garage: https://www.sfmta.com/garages-lots/civic-center-garage
Be sure to let me know if you can't make those hours.
My car is set up for automated charged toll crossing using my license plate number so feel free to use the FasTrak lane.