(1) be driven on the landing areas proper unless in the line of duty or with express permission of the Airport Board or its airport manager, nor otherwise than in accordance with his instructions;

(2) be parked on the airport property except in areas designated for that purpose by the airport manager;

(3) fail to at all times yield the right-of-way to landing or taxiing aircraft. (Ord. A-565 §3.01, 1965).