I also really appreciate mobile service but when my car died in my garage (and couldn't be unplugged) it needed to be transported 300 miles over the mountains to the service center. Being out of warranty, Tesla roadside got a quote of $1400 (!) for the tow and recommended that I talk to my insurance company. Turns out that the insurance company (State Farm) covered the cost of the tow because it was to the nearest place the car could be serviced, the terms of the towing coverage. I lucked out.
Being so far from a service center is a serious disadvantage since Teslas are far from reliable at present ( I hope that changes with time). You have to really want to drive a Tesla to put up with that sort of inconvenience and expense, or make sure that you never drive a car out of warranty, which is another considerable expense. For people within an hour or two of a service center it is no big deal, but being hundreds of miles from a service center is a major impediment to Tesla ownership. For now.