Pretty sure religious jawns are one of the exceptions under the code.

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Edit: Yep:

§ 10-403. Prohibited Conduct. 85

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(13) Exemptions. 86 The provisions of this Section shall not apply to the following:
(d) Sounds lasting no more than 5 minutes in any one hour created by bells, chimes, carillons, or the human voice, or by electronic or mechanical devices that reproduce such sounds, while used in connection with a religious institution;