Sec. 94-387. Obstructing municipal government operations.
(a) It shall be unlawful for any person to obstruct municipal government operations. A person commits obstructing municipal government operations if that person intentionally obstructs, impairs, or hinders the performance of a municipal governmental function by a city employee by using or threatening to use violence, force, or physical interference or obstacle.
(b) It shall be an affirmative defense that:
(1) The obstruction, impairment, or hindrance was of an unlawful action by a public servant;
(2) The obstruction, impairment, or hindrance was of the making of an arrest; or
(3) The obstruction, impairment, or hindrance of governmental function was by lawful activities in connection with a labor dispute with the government. (Code 1979, § 27-29)