10.16.060   Slow speed impeding traffic—Enforcement.
   A.   No person shall drive a motor vehicle at such a slow speed as to impede or block the normal and reasonable movement of traffic except when reduced speed is necessary for safe operation or in compliance with law.
   B.   Police officers are authorized to enforce this provision by directions to drivers, and in the event of apparent wilful disobedience to this provision and refusal to comply with direction of an officer in accordance herewith, the continued slow operation by a driver is a misdemeanor, except that inability to comply with such order will not be construed as wilful disobedience.
(Ord. 321 Art. 4 § 2(a), 1974).