yah, one of the main purpose of this thread is to bring awareness to our Z owners so you know what could be causing the intelligent key warning flashing in the cluster and can not start the engine.
if this ever happens to anyone, recommend you do the tricks ive noted before like unlocking and abruptly moving the steering column up/down, tapping at the steering lock itself, unplugging the steering lock and plugging it back in, or just replace it entirely before it fails.