Yes, you are correct. And that Freedom of Expression is what allows people to burn an American flag if they want [Texas v. Johnson, 491 U.S. 397 (1989)]. Somehow I doubt that this ordinance (as it is being presented) would hold up very long to legal scrutiny.

P.S.: I am not a lawyer.
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“Hiking is just walking where it’s okay to pee. Sometimes old people hike by mistake.” — Demitri Martin