The reason the laws existed in the first place was because at the dawn of the industry the franchise fees were used for capital by the manufactures. Without the legal protections car makers could simply run the franchisees out of business once they became big enough. To a similar extent when foreign makers moved into the USA the franchise fees helped build the infrastructure.
Now we have a conundrum where Tesla doesn't see itself needing the dealers and is going on it's own. A large chunk of that is based on most buyers are going to be in big cities. They only need need 1 or 2 showrooms per state for the foreseeable future. They don't see the need to build out the showroom network which would require having franchisees. For Tesla the Franchisee system would certainly add another 3-4K to the cost of each car. They'll never get the model 3 to fit into the expected price range going that route.
At the same time you can't just get rid of all the dealer protections because Ford, GM, Toyota, Honda, etc would be more than happy to cherry pick the most profitable areas for corporate dealerships. Those dealerships are owed that exclusivity because they invested in the company at the beginning. I personally don't think the dealers give a crap about selling Tesla, but they foresee the big auto makers suing to get rid of franchise laws if Tesla is allowed an exemption.