"The Patriot" boldly violates corporate contribution law

Since alleged violations of Minnesota's corporate contribution law are the topic of several Republican blogs, I thought it would be appropriate to remind everyone about a very blatant, brazen disreguard for that same law by WWTC-AM aka "The Patriot" and KKMS-AM. Both of them are owned by a large corporation that should know better.

MN statute:211B.15, subdivision 11 says:

Messages on premises. It is not a violation of this section for a corporation selling products or services to the public to post on its public premises messages that promote participation in precinct caucuses, voter registration, or elections if the messages are not controlled by or operated for the advantage of a candidate, political party, or committee.

Simply put, posting campaign signs on corporate property is a violation of the law.
The violation is very well documented here with video, a statement from a station employee that the station put the sign up, maps and links to the relevant laws.