Firstly, the regulation is outside of any authority granted by the 2nd Amendment.
2. It is a violation of the elected officials solem oath of office.
3Rd. Like all gun regulation GFZ are a monumental proven failure to do anything but create killing fields.
The regulation will only affect those who willingly abide it. It will not stop the first person with ill intent from entering with a gun.
Only prevent the innocent from their inalienable right to bear arms in defense of themslves.