There are various parking garages in the vicinity of the office. The three closest ones are:
Ellis O'Farrell Parking Garage This is the closest parking garage to the Flood Building. If you park here, you can enter the Flood Building on 71 Ellis Street, immediately across the street from the parking garage.
Fifth and Mission Parking Garage If you park here, you can enter the Flood Building on 870 Market Street, which is only a block and a half away.
Union Square Garage If you park here, you can enter the Flood Building on 71 Ellis Street, which is only two blocks away.