Once again, §66.0409 is toothless and only a distraction. No one has cited, that I recall, ever, an action under Wisconsin state firearms preemption.
I wouldn't say that it's entirely toothless. There have been a number of municipalities that have backed down in the face of 66.0409 without taking them to court.
re: Madison, here is the zoning ordinance, complete with typical Madison paranoia. Not surprisingly enacted just after the state preemption statute took effect. (What is now 66.0409 was enacted in November 1995, Madison's zoning ordinance January 1996.)
Handgun shop, subject to the following conditions:
Sec. 28.10(4)(c)59.a. ZONING CODE
Rev. 6/15/11 28 - 118h
a. Such shop shall be located in a building of Type 5 construction as
defined in Wis. Admin. Code § ILHR 51.03(5).
b. No handgun shop shall be located within 1000 feet of any church,
synagogue, temple, mosque or any other place of worship, any lot in a
residence district, either in the City of Madison or in a municipality
adjacent to the City of Madison, any of the following planned
developments which allow residential dwelling units: planned
community development, planned unit development, and planned
community mobile home parks; any public park, any private or public
elementary, secondary or vocational school, any public or private
playground, any day care center, any public library, any youth recreation
area including little league baseball fields, soccer fields, or
YMCA/YWCA.
c. No handgun shop shall be located in the same detached building where
alcohol beverages are sold.
d. No handgun shop shall be located in the same detached building where
any patron thereof under the age of 18 years may enter, unless
accompanied by a parent, guardian or adult spouse 18 years of age or
over.
(Cr. by Ord. 11,506, 1-26-96)