Sorry to hear. wouldn't it be worth popping on portable jump pack or battery tender to at least try to energize 12V system enough to wake up and put in neutral?
Wow, keep us posted. They gave you a loaner?Tried that - didn't help. Even tried disconnecting the 12V entirely and reconnecting to reboot the computers. By the time the tech looked at it the next day the car was bricked and he couldn't even wake it up by connecting the 12V to an external source. Einstein is one sick puppy at the moment. If the car isn't even waking up with external 12V provided then a fuse is blown or ICAS is probably smoked or something...