Unfortunately the devil is in the details that we non-attorneys can't even know. They depend on the jurisdiction and the words to give "valid or not per state law" teeth. In the case of Wisconsin, the general paragraph (2) prohibition (copied below with link URL to the chapter entire) is toothless and only the specific prohibition of grandfathered ordinances has teeth of "no legal effect" and "may not enforce".
Certainly the words are clear to us, and some Wisconsin municipalities are moving to rescind but a town cop may still cite for an evidently preempted ordinance to the citizens jeopardy.
I would think such a map needs some words of explanation and caution. Someone else here very wisely said "Citizens are not required to know the law but only to pay the penalties." I would submit that a similar gulf exists between state statutes and local ordinances as between state statutes and The Constitution of The United States (and between COTUS and natural law) and no one would be foolish enough to flaunt the Constitution to a state cop. The law abides only the law abiding.
http://www.legis.state.wi.us/statutes/Stat0066.pdfOriginally Posted by Wisconsin Statutes, Chapter 66, General Municipality Law