(a) All business establishments which engage in motor vehicle repair or maintenance shall give reasonable notice of the consumer's right to a written estimate. It shall be prima facie evidence of such notice if there is posted in a conspicuous place at the point where vehicles are normally received for repair, a sign two (2) feet by three (3) feet stating: "Under the provisions of the Montgomery County Code, all customers are entitled to a written estimate upon request before repair work over $25 is begun and this business must comply with that law."
(b) Each business establishment engaged in the business of motor vehicle repair or maintenance shall give reasonable notice of its policy on storage charges. It shall be prima facie evidence of such notice if there is posted in a conspicuous place at the point where vehicles are normally received for repair, a sign stating its storage policy; provided, that no storage charge shall accrue or be due and payable for a period of twenty-four (24) hours from the date of notification to a consumer of the completion of repairs or services, unless otherwise agreed. (1975 L.M.C., ch. 21, § 1; 1980 L.M.C., ch. 10, § 1.)