1251.09 USE OF REQUIRED OFF-STREET PARKING SPACES.
   A.    Off-street parking spaces required in this Code shall be designed, maintained and used for the exclusive use of the tenants, occupants and customers of the buildings or uses on the site.
   B.    Off-street parking spaces shall not be offered for use by non-tenants or non-customers of the use, except for the number of spaces which are in excess of the requirement for the use, and where such off-site parking would be permissible in the zone district in which the use is located.