Synonyms for the word "ordinance" include: "edict · decree · law · injunction · fiat · command · order · rule · ruling · dictum · dictate · directive · mandate · enactment · statute · act · canon · regulation..."
So FLT-bird is here making a distinction which has no meaning, apparently for no other purpose than to be quarrelsome.
LOL! You obviously do not know the difference between a local ordinance and a law. Nor do you know anything about history either. All powers exercised by cities and countries are at the discretion of the state and can be taken away by the state - and yes this has happened numerous times.