No person, when riding, shall allow any part of his or her body to protrude or extend beyond the limits of the vehicle in which he or she is riding, except to give such signals as by law are required, and it shall be unlawful for any person to hang onto any vehicle whatsoever.
(2013 Code, § 17-16) Penalty, see § 70.99
Cross-reference:
Clinging to motor vehicles, see § 71.13