If Tesla can do this, then so will Ford and GM, and then you just killed a very large job market, seeing as how many dealerships employ 50+ employees.
Wouldn't that be to everyone's advantage? Those people could be doing something. Imagine 50 people contributing to the economy rather than being dead weight. Multiply that by the number of dealerships. You just gave the American economy a shitload of "new" resources, for free.