Unless I’m missing something, it seems that this information largely invalidates the thesis of your previous post. A critical component (fuel injector) failed, the software in the car prevented it from running and causing catastrophic damage. Roadside assistance came, immediately determined it can’t be fixed on the side of the road and towed the car. Seems like a best-case scenario given the circumstances other than possibly the red herring related to the stability control.
Assuming that the fuel injector wasn't stuck open, the car could simply disable the affected cylinder and continue to run (poorly) in limp mode. I had exactly this happen in a 20 year old VW and it turned out that the injector was fine and the connector had just come loose. The engine sounded awful running on 3 cylinders and wouldn't go past 3000 rpm but there was no permanent damage. The fault code in the ECU correctly identified the problem (fuel injector cylinder X open circuit) though it did also log misfires and disable traction control.
