>>507379519
Not sure what state you're in, but afaik, red flag laws only allow cops to "temporarily" confiscate your arms. They have to be returned to you within a certain amount of time. You can also specify a recipient for the guns (trusted friend/family) who can just immediately give you your guns back.
If they're demanding that they only return money, that sounds totally new and state-specific. You'll have to inform me on that.