AFTER PARKING MY VEHICLE IN MY DRIVE WAY (VEHICLE WAS IN PARK WITH EMERGENCY BRAKE APPLIED) I EXITED THE VEHICLE AND THE VEHICLE STARTED ROLLING FORWARDS DOWN MY SLOPPED DRIVEWAY. I ATTEMPTED TO CHASE THE VEHICLE HOPING TO JUMP IN AND APPLY THE BRAKE BUT WAS UNABLE TO. VEHICLE CAME TO A STOP AFTER HITTING MY FENCE, BUSHES, AND A SMALL TREE. THERE WAS BODY DAMAGE TO THE FRONT RIGHT PORTION OF THE VEHICLE.