2004 FORD TAURUS — POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT

I HAD RENTED A 2004 FORD TAURUS FROM ENTERPRISE RENT-A-CAR. I NEEDED TO GET SOME THINGS OUT OF ANOTHER CAR TO PUT INTO THE RENTAL CAR. I PUT THE TAURUS INTO DRIVE AND PULLED FORWARD TO THE OTHER CAR. I PLACED THE CAR IN PARK, OPENED THE DOOR, TOOK MY FOOT OFF THE BRAKE AND STARTED TO GET OUT. AFTER I HAD BOTH FEET ON THE GROUND AND WAS STANDING UP, THE CAR BEGAN TO ROLL BACKWARD. I FELL TO THE GROUND WHILE HOLDING ON TO THE DOOR AND WAS DRAGGED A FEW FEET. I MANAGED TO ROLL AWAY FROM THE CAR. THE CAR ROLLED BACK TO THE ORIGINAL PARKING SPOT AND HIT A GUARD RAIL AND ANOTHER CAR.