pick a name of a hurricane.....look south
so, you're implying this happens
every time a hurricane occurs anywhere in the American south?
on imposition of martial law
Martial law in the United States - Wikipedia
and, doing your citation work for you
www.nbcnews.com/id/27087738/ns/us.../nra-settle-suit-over-katrina-gun-seizures/
Following Hurricane Katrina, many states passed laws to prevent law enforcement from blanket actions, such as occurred in 2005 on the Gulf Coast.
It does not appear to have occurred anywhere else. Those who had their guns illegally confiscated either had them returned, or were compensated. While a number were arrested, except in cases of prior warrants, they were shortly released and charges were dropped...and many were compensated.
So your OP really hinges on the conditions of the moment, whether there is an emergency situation occurring.
I don't have firearms, but if I did, and it was in an emergency situation, I would turn over my weapons, and record names and any other identifying information for future lawsuits for violation of my civil liberties. The courts have not looked kindly on such overreach by law enforcement.
If law enforcement showed up without proper warrant and when no emergency was occurring and demanded this, I would point out their illegal action and refuse to comply...again, noting names and other details against future.
If they had what appeared to be a valid warrant, then I would comply...but I would doubt that any judge would approve of such a warrant, unless there were good reason to suspect I am a hazard. And again, I would note names and details for future use...