We will have to see how long that lasts

Right now there are not enough of them on the road nationwide to justify a secondary shops wanting to service them, however if they meet their goals with the Tesla 3 there will be

This will result in law suits against Tesla if they do not provide a way for 3rd parties to make parts and service the vehicles as there are multiple federal laws the prevent this type of locking down

Car manufacturers have tried this in the past, it always fails to work out of them.