WHILE IN A PARKING LOT IN GRIDLOCK TRAFFIC LEAVING AN EVENT MY 2016 TOYOTA CAMRY MADE A LOUD THUMP NOISE AS IF WAS RELEASING THE BRAKE. THE CAR THEN LITERALLY MADE A SUDDEN ACCELERATION FORWARD AND IT WOULD NOT STOP. BECAUSE IT WAS GRIDLOCK IN THE PARKING LOT THE ONLY WAY IT WAS GOING TO STOP WAS TO HIT A PERSON OR ANOTHER CAR. MY CAMRY HIT 2 CARS AND FINALLY STOPPED. THE CAR AT THE TIME WAS NOT IN MOTION BUT IN DRIVE WITH THE FOOT ON THE BRAKE