A. Any person unintentionally violating any provision of this Subchapter, by reason of a mechanical failure of a parking meter not caused by such person, may be acquitted of such violation upon establishing such facts by a preponderance of the evidence.
('65 Code, § 21-17.12) (Ord. No. 83-027 § 1; Am. Ord. No. 97-009 § 8)