Any person who shall willfully and unnecessarily interfere with the Militia or any part thereof while on drill, parade, or in the performance of any military duty, shall be guilty of a misdemeanor: Provided, the funeral processions, carriage of the United States mail, legitimate functions of the police, progress and operation of the hospital ambulances, fire engines, fire departments, and apparatus of the insurance patrol shall not be interfered with thereby. R.L. 1910, § 3930.
Oklahoma Legal Code