Yep. Qualified immunity.If you take it a step further, since you can't face your accuser when it comes to these laws, a LEO\Agency can just conjure up an anonymous report if they decide you are a problem or a nuisance, saying whatever they want about you, and you have no recourse. If nobody is asking who makes these red flag calls on people, the possibilities are endless. Real slippery slope kind of stuff.
One of the original drafts for the Florida red flag provisions actually included a line that essentially read, "and for any other reason." to justify confiscation. I'm told that line was removed from the final provision.