No Tesla owners here who have thought about this question?
Maybe use their app to get a service car out to you to help you out? Call AAA like anyone else?
Have a solar panel in your trunk that can trickle charge you and a good book?
Really, its a reasonable question. However if you are dumb enough to risk it, then you deserve to be stranded. It's the same with an ICE car.
I have a neighbor, with a big azz old truck guzzler. I took the back country road home one day instead of the fwy. Saw him on the road, a bad part with a blind curve, just stopped. We don't talk much, but I stopped and asked whats up. He ran outta gas with 3 miles left from home. He said he decided to risk it even though he knew he was really low on fuel. He called AAA and was waiting for them to show, 30 mins later. I said call me in an hr if he still needed help.
It can happen to any type of car. And with a Tesla, you can literally map out your route on the screen, and it will tell you if you have enough energy to make it. Gotta be a space case to not be ahead of the computer.