The break-in was reported at about 11:30 a.m. Tuesday in a loading dock where the delivery truck had briefly been left unattended, police said.
Investigators are seeking eyewitness accounts from anyone who was in the area at the time and may have witnessed the theft, police spokesman Sgt. Mike Andraychak said.
Anyone with information is asked to call the Police Department's anonymous tip line at (415) 575-4444 or send a tip by text message to TIP411.
