"joe" wrote

just ignore it
If the airport is a public use airport and receives federal money then
the local town/ city cannot place restrictions
on its use.
you as the PIC decide if you want to stop do a touch and go....
Our local airport tried that with some of the mechanic owners who were
servicing their own aircraft, telling them they can't work on their
own airplanes.

THAT is a totally different issue. I would assume (dangerous, I know) that
the FAA has approved the no T&G restrictions. Once that has happened, they
are part of the regulations, and a violation may be enforced.
--
Jim in NC