No person shall use the airport as a base or terminal for commercial aviation activities or conduct any business or concession upon the airport or upon any land acquired for use in connection with the airport, or upon or in any of the buildings, structures, land, parking places, walkways, roadways or other facilities used or operated in connection with the airport, without first obtaining the written permission of the board or the airport manager. (Ord. 2001-04, 5-7-2001)