That is ridiculous. A car is a product like any other product that can be sold. Apple sells phones and MacBooks directly to the public. Outlet malls have clothing manufacturers selling directly to the public. The car dealerships is an outdated model and this is a sign that they are desperate. They are just suing because once the Tesla stores prove to be more efficient other car manufacturers will follow suit.
I have to admit, as an outsider, I can't fathom how a law like this even exists especially in a place like America.
Concludes that state regulation is necessary to the extent it neutralizes the disparity in bargaining power between the automakers and the dealers, but that current legislation no longer achieves this and only benefits the auto dealers.