Any restriction promulgated in accordance with the provisions of this chapter will terminate automatically forty eight (48) hours after the mayor's declaration of civil disorder was issued or upon issuance by the mayor of a declaration that a state of civil disorder no longer exists, whichever occurs first; provided, however, any or all of the restrictions promulgated by the mayor may be extended by successive resolutions of the council for additional periods of time. The period of any one extension shall not exceed five (5) days. (2000 Code § 38.04)