I am in the same boat. Except my car shows as still being owned by Tesla because it was a demo with 250 miles on it when it was assigned to me. My app bombs out at the end of trying to make an appt, I am 30 versions behind on updates and not getting any, and when I went to the service center in person (they are the only ones could finally tell me that the car doesn't belong to me), they said they will not touch my car until I own it.
So you are probably right that we don't have roadside assistance either if we don't have warranty repair service.
There's no assurance that anyone is really working on fixing my issue, but plenty of people that will tell you that it will probably be resolved by waiting. So I could wait a long time and then find out that waiting was stupid because no one was working on it. There's clearly a plethora of things that can go wrong within Telsa's inner workings, but almost no one that works there that can actually do anything. They all just wait for the wizard behind the curtain to make a move.