Re: I'm confused - legalities of buses in Minnesota
While I cannot speak for MN, a lot of states will let you drive it home after purchase just by putting a sign "In Transit" in the rear and front windows. Ohio's law says you cannot have the stop arms or working lights, so the previous owner painted over the lights with spray paint, also painted all the lettering saying "School Bus". NY law says much the same thing, though I painted mine so it looks nothing like a bus, but I had no problem driving it across Ohio and then through Western New York when I first purchased it.
If you want to be completely covered you could call your local sheriff's office or state police barracks and ask what they suggest, since they would be the ones enforcing the law they are the ones to explain the situation to and see what they recommend.
Recently I also received a zoning ordinance violation from my local town stating I couldn't keep my painted bus in the front yard or driveway, since my driveway is only a 50' long pad of concrete between the road and the garage, there was only about 10' of space between the road and the front of the bus so visibility was poor, so I could see where they were coming from, so now it is out next to the barn. It still took them 6 months to realize it was there though...
1988 Chevrolet S6000 8.2L Detroit Diesel