and whats to stop the federal government from doing this. At this point people need to accept everything is being recording in public.
Given my vague recollections of the Supremacy Clause [1] of the Constitution, I don't think a local ordinance like this could have legal effect on the feds, even if it purported to.
[1] https://en.wikipedia.org/wiki/Nullification_(U.S._Constituti...