If they cant get the laws in places like Michigan overturned via the courts or lobbying, set up independent dealers in those states.
Put out an offer and say "if you are willing to follow all our rules, we will give you an exclusive license to sell Tesla cars in Michigan". Set the rules in a way that they comply with Michigan laws but dont hurt Tesla.
Insist that the entity that is given the license is not allowed to have any connections to any other car company or dealership and must only operate and sell Tesla vehicles. (this would then take away any possibility that the dealer entity and Tesla dont have the same ultimate aims).
Insist that sales and service staff at the dealership must undergo mandatory training from Tesla corporate (same training as staff at Tesla owned stores undergo) so they know how to properly sell the virtues of electric cars.
Do what Apple does with 3rd parties that sell iPhones and things and insist product be sold at a fixed price with no haggling.
If the franchise agreement is drawn up properly it should be possible to have dealerships in Michigan that meet the requirements of Michigan dealership laws AND keep all the things that make Tesla different from other car companies in place. (note that I haven't read the laws that apply to car dealers in Michigan so I dont know if there are things that would prevent Tesla from making such an agreement)