MY WIFE, DOG AND I PULLED INTO A PARKING LOT OF A COUNTERTOP SUPPLY STORE. IT WAS APPROXIMATELY 80 DEGREASE OUTSIDE SO I ROLLED DOWN THE WINDOWS TO HALF AND LEFT THE TRUCK RUNNING IN PARK TO KEEP THE A/C ON FOR THE DOG. IN THIS PARKING LOT WE WERE THE ONLY VEHICLE PARKED NEAR BY AND THERE WAS NO PARKING BLOCK IN FRONT OF THE TRUCK. WE WERE IN THE STORE APPROXIMATELY 20 MIN LOOKING FOR A COUNTERTOP THEN WENT TO SIT DOWN WITH THE SALES SPECIALIST. ABOUT 5 MIN INTO THAT CONVERSATION THE SECRETARY IN THE FRONT YELLED "YOUR TRUCK IS DRIVING OFF". I IMMEDIATELY RAN OUT THE DOOR TO FIND MY TRUCK ABOUT 25 YARDS AWAY AND ACROSS THE MAIN ROAD. THE ROAD DID NOT HAVE CURBS BUT DID HAVE STEEP CULVERTS ON BOTH SIDES (NOTE: I WOULD NOT THINK A TRUCK AT IDLE WOULD MAKE IT UP TO THE ROAD) THE TRUCK "TOOK OFF" PER 3 WORKERS THAT WERE NEAR BY IN THE LOT MOVING A LARGE SLAB OF GRANITE, AND A SIMI DRIVER WAS DRIVING ON THE ROAD STATING THAT BOTH MY RAM AND HIS TRACTOR HIT TIRES AND THAT'S WHAT GOT MY TRUCK TO STOP. EVERYONE THAT WITNESSED THIS STATED THE DOG WAS IN THE BACK SEAT AND NO ONE GOT OUT OF THE VEHICLE. AS I APPROACHED THE TRUCK IT SOUNDED TO BE RUNNING AT IDLE AND WHEN I GRABBED THE DOOR HANDLE THE LOCKS UNLOCKED AS NORMAL. I FOUND THE TRUCK IN DRIVE AND RPM AT NORMAL IDLE RANGE. THE TRUCK ALLOWED ME TO PUT IT BACK IN PARK. I THEN RESTARTED THE TRUCK, MOVED IT BACK TO THE PARKING LOT. THE BUSINESS HAS SECURITY CAMERA FOOTAGE OF THIS SHOWING HOW MY TRUCK UN TAMPERED WITH WENT FROM IDLE