Well, Wyatt Earp certainly ignored that one. (:-)
Earp’s laws were to prevent transient cowboys from carrying guns in town, so soon after the Civil War.
Once when Hurricane Bill tried to bust out one of his men from the Wichita jail he came with his men armed to the teeth.
Someone rang the city alarm bell, and the only man trying to prevent the breakout was backed up by about thirty or forty armed citizens of Wichita. Bill backed off, and for months every weed patch turned up a discarded cowboy’s gun.