I could see something like this happening, and it would have to be the Feds ordered in, because I know for a fact in the city my husband works in as a FF, not one police officer or firefighter supports this law and the only talk is how to get around it. We're in upstate NY. I only mention my husband is a firefighter because while the Police will not have restrictions put on them, FF’s (obviously not the Police) work in the same complex as the PD and even though the FF’s are just “average citizens” when it comes to the idiotic NY law, all of the PD and FF’s are all in agreement. They will not take part in confiscation of their neighbors weapons, I don't believe.
I have another relative, ex marine, collector and gun enthusiast all his life. Teaches gun safety. I really fear what will happen if the Feds or state attempted to confiscate. He has no children, and would take a stand. I also know state troopers that will not enforce confiscation if ordered.
"all of the PD and FF’s are all in agreement. They will not take part in confiscation of their neighbors weapons, I don't believe" I hope you are right. But all it takes is one useful idiot who wants to get promoted in the system, or pressure from above with threats of taking away their pensions for instance, to start the confiscation process. We can't ignore so many examples in our lifetime.