The exemption granted in section 60-6 shall be allowed only if the off-street parking spaces provided are made available for general public use, or for the use of the customers of the establishment for which exemption is claimed. (Mont. Co. Code 1965, § 44-9; 1985 L.M.C., ch. 28, § 1; 2016 L.M.C., ch. 8, § 1.)