The whole idea of the Second Amendment is to enable citizens to fight a tyrannical government. In the event of a big confiscation effort, I think using rather than hiding these things is a better idea. Otherwise, what is the point?
You don’t get it. Hide them. Report them stolen. Get a police report. Then return the guns and use them freely with no worries. They are officially stolen now they will never look for them again at your house. Get it?