It shall be unlawful for any person to move any vehicle left standing on a highway by another person, unless it is with the consent or by the direction of the owner or person in charge of the vehicle, except in or in connection with the performance of their duties by members of the police force and of the fire force and by employees of the division of highway maintenance and except for the purpose of clearing the way for transit vehicles.
('73 Code, § 74.08) Penalty, see § 70.99