He should sue the mall for millions and there should be a Christian boycott of the MOA for Christmas season until they publicly change their policy. Otherwise this is a just a Muslim outpost.
Publicize the name of the “woman” who called the police on them. Were they local police or “mall cops”/ Find out and sue them anyway, and the Mall, and the Police Department.
Also check the woman’s immigration status. Somewhere in Somalia a camel is missing her wife.
In fact, it is time to start deporting violence, anti-American Moslems from Minnesota. That state is a festering sore of Marxism and Jihadism and Sharia Law advocates, plus nosey anti-Christian Moslems.