Not in Michigan, but I am a Michigan CPL holder and resident. I drove my grandmother out to South Bend for a flight to Seattle around Noon. I carried inside the airport no problem. I noticed security gave me a wide berth and the airport police were stationed at the security station giving me a death stare. Before, I had never seen airport police or security bothering with me. At the end of the day, I gave her a hug and got in my car, no problems, no encounters, nothing.