No person shall fail, neglect or refuse to comply with the orders made or prohibitions instituted by a proclamation issued under the provisions of this chapter, or otherwise violate or in any manner aid, assist, encourage or countenance the commission or perpetration of a violation of such proclamation. For the purpose of the prosecution of any person for the violation of this chapter, a copy of the proclamation of the Mayor, certified by the Clerk of Council to be a true and correct copy thereof, shall be deemed to constitute prima-facie evidence that such proclamation was duly issued by the Mayor on the date and at the time set forth therein pursuant to the authority contained in this chapter. (Ord. 68-197. Passed 11-19-68.)