PULLED INTO GARAGE AND TURNED VEHICLE TO PARK AND TURNED ENGINE OFF. VEHICLE ROLLED BACK OUT OF MY GARAGE AND CRASHED INTO THE NEIGHBORS GARAGE AND BRICK WALL NEXT TO GARAGE AND UP ONTO A CURB. POLICE CAME BECAUSE WE COULD NOT GET MY VEHICLE STARTED AND IT WOULD NOT MOVE OUT OF "PARK" . IT GAVE A NOTICE EACH TIME THE KEY WAS IN THE IGNITION THAT "TRANSMISSION IS NOT IN PARK". BRAKES WERE TIGHT AND STEERING WHEEL LOCKED UP. HAD TO GET A POLICE OFFICER TO MOVE TO A SAFE PARKING SPOT UNTIL TOWING ARRIVED.