A. To any authorized emergency vehicle properly equipped as required by law and actually responding to an emergency call or in immediate pursuit of an actual or suspected violator of the law, within the purpose for which such emergency vehicle has been authorized, but this shall not relieve the operator of an authorized emergency vehicle of the duty to operate with due regard for the safety of all persons using the public highway, nor shall it protect the operator of any emergency vehicle from the consequences of a reckless disregard for the safety of others; provided, that the provisions of this section shall in no event extend any special privilege or immunity to operate an authorized emergency vehicle for any purpose other than that for which it has been authorized;

B. To any person, teams, vehicles, or other equipment while actually engaged in authorized work upon the surface of a public highway insofar as suspension of the provisions of this title is reasonably necessary for the carrying on of such work, if reasonable precautions are taken to apprise and protect the users of such public highways, but this exception shall not apply to such persons, teams, vehicles, and other equipment when traveling to and from such work;

C. To any persons or vehicles, insofar as they may be specifically exempted from any provision or provisions of this title. (Ord. 304 § 6, 1963).