The incident happened around 8:00 a.m. in the area of Philmont Avenue and Byberry Road.
According to the police, the driver said that the gas pedal got stuck on the vehicle.
Some of the customers told Action News they were in the store and heard the collision and came out to find their cars had been hit.
License and Inspections was called to the scene to examine the building and make sure the structure was safe.
So far, there are no reports of injuries and police are investigating.