I don't know what they think they're accomplishing ... if someone wanted to kill the mayor, or whatever, they're not going to be stopped by a sign.
Well, way I figure it, if I am disarmed by some stupid regulation, and then me or mine is injured by someone who disobeyed because I am less able to perform my duties to my family and community, then someone ought to be sued.
Many of these laws are immoral, by this way of looking at it, so...