Residents made their final pleas for and against the new rules before the Cheyenne City Council passed the ordinance Monday. Cheyenne Police Chief Mark Francisco said during the meeting he was confident in his department’s ability to enforce the ordinance. EnforcementThe measure works in tandem with preexisting city noise restrictions but allows police to now measure decibel levels on moving vehicles. Current city noise regulations say 80 decibels is the maximum permitted. “The first time I ran for city council I think the city had a population of about 49,000.