ON 11/3/2015, I PUT MY CAR IN PARK, ENGINE WAS STILL RUNNING, AND I EXITED VEHICLE. HOWEVER, CAR DID NOT GO INTO PARK, ROLLED FORWARD, KNOCKED ME DOWN AND ROLLED OVER MY LEFT FOOT WITH BACK REAR TIRE. THE PARKING GEAR DID NOT ENGAGE AND I WAS NOT ALERTED THAT IT WAS STILL IN DRIVE. THIS OCCURRED IN A PARKING LOT. SOMEHOW I GOT UP, WAS ABLE TO RUN AFTER CAR AND DIVE IN CAR AND HIT GEARSHIFT INTO NEUTRAL TO STOP IT. I ENDURED A CRUSHED FOOT AND FOUR MONTHS OF THERAPY. THERE WAS NOT DAMAGE TO THE CAR NOR DID I REPORT TO POLICE.