I have a different idea about confrontations with authorities, if it ever comes to that.
If you’re one of the first, your priority is to live and remain free to “put the balloon up”. This is the reason for caching. You cooperatively surrender what is right there in your house, get the word out ASAP, and re-arm yourself from a cache.
Then, you and your network can get together to decide what to do next, and that next will probably involve either guerrilla tactics or ambushes of the “second wave” of confiscation.
IOW, engage them on YOUR terms, not theirs, where they have 50 ninja suits with full auto weapons coming to confront you and the mouse in your pocket for backup.
I'm still going with 10mm’s action plan...open fire.
Afterward, folks in the area will know what's going on.