How do you sink N.O. again? Pray for it.
If Riley wants to come out and play with the law-abiding citizen and try and take away their firearms let those citizens unite and simply defend themselves from his tyrrany by opening fire.
If every place they go to confiscate firearms is met with gunfire that results in injury or death for at least one of them at each occasion might persuade them to leave the law-abiding citizen alone and actually go after the criminals.
Interestingly, *Texas* law specifically allows you to resist a peace officer's attempt to illegally confiscate your weapons (or otherwise abuse his authority) with force, up to and including deadly force. (Note that this is a gross simplification - but it IS in there).