Well, there are a lot of dumb, obscure, ancient blue laws that aren't ever actually enforced. And a law that everyone's forgotten about and nobody bothers to enforce anymore isn't, in a realistic sense, a law. I mean, think of the example from Washington D.C.:
[FONT=Arial, Helvetica, sans-serif]"It’s against the law to post a public notice calling someone a coward for refusing to accept a challenge to duel."[/FONT]
[FONT=Arial, Helvetica, sans-serif]It was obviously passed in the era before dueling was banned, and furthermore before the first [/FONT][FONT=Arial, Helvetica, sans-serif]amendment[/FONT][FONT=Arial, Helvetica, sans-serif] was applied to lower levels of government. It concerns something that's already illegal, and would be dealt with using other laws anyway, and so there's really not even any chance to apply some sort of constitutional challenge against it. So, it just lies there in useless limbo, not officially repealed but obviously not an active ordinance anyway.[/FONT]