Interesting that the "Police said the sign does not violate any laws and is an expression of freedom of speech." Doesn't that town, state, whatever, have any anti hate-crime legislation or anything like that?
That sign wouldn't be permitted to remain up for long in Maple Leaf Land (I would hope).
See link below for "What is a Hate Crime?" (Canadian P.O.V.)
http://www.cbc.ca/news/background/hatecrimes/