Earlier quoted context omitted.
Yeah, but I think the broader point I'd that a car shouldn't be disabled like this in the first place due to no reception.
The car wasn't disabled because it lost reception, it was disabled because of an anti-tampering device that activated when the owner tried to install a child car seat (admittedly, what they did to install a child seat that set off the tamper switch baffles me). It remained disabled because the remote support team couldn't fix it since the parking garage was underground and had no cell reception.
My guess is this some serious anti-theft for when your very expensive car gets stuffed in a shipping container - it bricks itself until you present it physically at a dealer (at which point you'd hope it gets flagged as stolen).