[kraigwy]

I don't know if that law pertains to states, If I was to guess I would say it doesn't.

However, after Katrina, fears arose that "it could happen here" (confiscating legal firearms). Wyoming quickly passed a state law like the one you mentioned. Preventing any government agency from confiscating firearms for her citizens in case of natural or man made disasters.

Right now there is a gun friendly public, and politicians who are afraid to cross the gun lobbies.

Now is the time to petition you state to enact such laws.