Michigan drive time law? Michigan

[dsmhybred]

I work in Michigan and recently my employer has asked that I go to Wisconsin to take care of some issues at our offices there. They told me this would be part of my job when I hired in but they did not tell me that I would not be paid for it. They are trying to tell me that they will pay me only for the time I am in the Wisconsin office. Another words the 5 hours of drive time to Wisconsin and back will be totally unpaid. They are providing a company car and I was able to leave from my home the last trip. They also provide gas, per deim, and hotel expense. When I pushed the issue they told me I could refuse to go but "it would not be in my best interest". With drive time I worked 12 hours yesterday and 11 today. I am not asking for over time. I even take a half day despite gas prices and the 40 minute drive to my office to keep under 40 hours when I am on saturday rotation. Can anyone advise me on this?

[Pattymd]

For an overnight trip, here are the federal regulations:
http://www.state.tn.us/labor-wfd/lsques.html#laborlaws
http://www.dol.gov/dol/allcfr/ESA/Ti...9CFR785.40.htm

I'm assuming you're nonexempt, otherwise you wouldn't be asking the question.