It shall be unlawful for any operator to stop, stand or park any vehicle upon a street, other than an alley, in a manner or under conditions so as to leave available less than ten feet on the width of the roadway free from movement of vehicular traffic, except of passengers or when necessary in obedience to traffic regulations or traffic signs or signals, or a police officer.
(1981 Code, § 14.20) Penalty, see § 70.99