Graphic Cedarburg Yard Sign

Reports are coming in of a home in Cedarburg that has graphic and violently suggestive yard signs in their yard. The source also told me it is near a school in Cedarburg.
How is this allowed or tolerated by Cedarburg leaders? Are Cedarburg leaders okay with signage that says "pitchforks sharpened here"? It seems to me like Cedarburg Police ought to pay this address a visit and conduct a welfare visit...