Upon reasonable grounds, the city clerk-treasurer may authorize the conduct of the parade or public assembly requiring a permit at a date, time, place or in a manner different from that named by the applicant and may tender a conditional permit setting forth proposed modified terms which differ from those set forth in the application. An applicant desiring to accept a conditional permit shall, within five (5) days after notice of the action of the clerk-treasurer, file a written notice of acceptance with the clerk-treasurer. If the applicant fails to provide written notice of acceptance of the conditional permit within the time prescribed, the parade or public assembly shall not be held. (2011 Code)