In the Market Center Urban Renewal Area, between 11 a.m. and 3 p.m., Monday through Saturday, no person may use any publicly amplified sound that contains commercial speech. At all other times in the Market Center Urban Renewal Area, no person may use any publicly amplified sound that contains commercial speech without a permit to do so from the Commissioner. City Code, 1976/83, art. 19, §§228, 229(b)(1st sen.) Ord. 99-548