Someone showed up at a tech session with an aftermarket fob or shell, I'm not sure which.
The fob worked, in that the remote did its thing and the fob unlocked the steering column lock. However, it could not turn in the ISM. Something dimensionally about the end you insert was off. I was able to turn on the car by holding the fob very close to the ISM and turning the ignition switch with my fingers.
We looked at the damn fob, and it looked fine. We couldn't tell what the issue was. But it wouldn't turn.