A payload perimeter protecting bumper and method of stopping an approaching vehicle from coming too close to a parked vehicle which includes a male receiver insert structure, which is configured to be inserted into and coupled to a hitch receiver on a truck, an intermediate portion disposed between male receiver insert structure and bumper member, which provides for the pivoting ability. The bumper member has an elongated pivotable structural member. The system is configured so that if you were to be trapped, you could unlock the pivot limiting pin and pivot upward the elongated pivotable structural member, thereby creating more space to move to exit the parking spot. In some embodiments, the elongated pivotable structural member could have a remote controlled linear actuator, with a length that could be automated.