VEHICLE WAS PARKED IN A PARKING STALL AT THE CITY PARK. I LEFT THE VECHICLE TO PICKUP TOOLS AT THE PARKS BAND SHELTER WHICH WAS ABOUT 40 FEET FROM THE PARKED VECHICLE. I RETURNED TO PARKED LOCATION AND THE VECHICLE WAS GONE. I FOUND IT ABOUT 20 FEET AWAY WEDGED UP AGAINST THE PARK SHELTERS PILLAR WITH A BICYCLE WEDGED UNDERNEATH THE VECHICLE. THE VECHICLE WAS STOPPED BY BRICK COLUMN ABOUT 4' FROM THE PLAYGROUND. 3 SCHOOL AGE BOYS WERE MERE SECONDS FROM BEING STRUCK BY THE VECHICLE. THE VECHICLE NEVER TURNED OFF AS WHEN I EXITED THE VECHICLE AND PUT IT INTO PARK, THE VECHICLE DIDN'T 'SHIFT' INTO PARK AS EXPECTED. THE INCIDENT WAS CAUGHT ON CAMERA BY THE PARKS SECURITY CAMERA. IT'S IS TERRIFYING TO SAY THE LEAST. AFTER THE FACT PHOTOS ARE INCLUDED HERE AS WELL.