Please check your comment about BART schedules. BART guarantees a ride to your destination from any point in the system if you get into a station by midnight. The last train from Embarcadero station to Pittsburg leaves Embarcadero at 12:26 AM.
That's nice, but you were commenting on workers who would potentially need BART to get home after being released from work at a late hour. We are able to do so.
Oh, I based my times assuming that people didn't live at the BART & needed to catch a bus connection… but I guess driving is relatively pleasant once you get away from the city & thus you can use a car instead.