(1) For the performance of its duties, the powers of a Parking Authority include the power to —
(a) detain and or immobilize motor vehicles or trailers in accordance with this Part;
(b) sell a motor vehicle or trailer in accordance with this Part, in enforcement of a charge on the motor vehicle or trailer for parking, detention fees which are unpaid;
(c) appoint in accordance with section 142 any of its employees to be Parking Attendants;
(d) designate as custodians, in accordance with section 157, any of its employees, or any person having a contract with it for the provision of storage services.
(2) Subsection (1) is in addition to any other powers that the Parking Authority has that are necessary or incidental to the carrying out of its duties.