The Chief of Police or other authorized city official shall act on the application for a parade permit within 3 days, Saturdays, Sundays and holidays excepted, after filing thereof. If he or she 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 his or her denial of the permit.