Womp womp. Less available towing capacity and less available payload with the extender taking up valuable cubics. I guess the woods dwellers will appreciate it. Long haulers would definitely need a trailer. Sigh.
Tesla is licensed to sell in most states. If they aren't licensed in your state (like me in Texas) they register the car in California then transfer to the buyer on purchase then you as a buyer register the vehicle in your state.
I believe the Texas law is changing soon to allow them to sell in...