The provisions of this chapter applicable to the drivers of vehicles upon streets shall apply to the driver of any vehicle owned by or used in the service of the United States government, this state or any other state, or any county or city. It shall be unlawful for any such driver to violate any such provisions of this chapter, except as otherwise permitted in this chapter or by state statute.
('84 Code, § 16-7)  Penalty, see § 10.99