§ 236. Right of way. The commanding officer of any unit of the organized militia parading or performing any military duty in any street or highway, may require any or all persons in such street or highway to yield the right of way to such militia, provided the carriage of the United States mail, the legitimate functions of the police and the progress and operations of the hospital ambulances, fire engines, fire departments and apparatus of the insurance patrol shall not be interfered with thereby. All others who shall hinder, delay, or obstruct any unit of the organized militia wherever parading or performing any military duty, or who shall attempt so to do, shall be guilty of a misdemeanor.