The City Commission or any authorized city official shall act on the application for a parade permit within three days, Saturdays, Sundays, and holidays excepted, after filing thereof. If the City Commission or authorized city official disapproves the application, he or she shall mail to the applicant within the three days, Saturdays, Sundays, and holidays excepted, after the date on which the application was filed, a notice of his or her action stating the reasons for the denial of the permit.