So I just got back from visiting Michigan. Most places were nice and so were the people. Detroit was an experience, one I'd recommend anyone to take during the daytime. Flying with guns these days is pretty easy to do.
While I was walking around town I inadvertently wandered onto a college campus in the middle of downtown without quite realizing it. It was cold, and I had my XD in an OWB holster and a light jacket. I didn't realize it but the bottom of the holster was quite visible, and very quickly a police officer stopped me and asked if I was carrying a gun concealed on a college campus.

I told him I was visiting from Texas, didn't realize it was a campus, and showed him my CHL and DL. He then told me the strangest thing I've ever heard. "Son, here in Michigan, you can't carry concealed in Gun Free Zones. As long as you are on this campus you must carry openly."
what?
So i pulled my clothes over my pistol, and OC for my first time, at the instructions of teh LEO.