How about we just tell him it's happened, hasten him to a bunker, and then let him take to some guy via radio that lets him think he's one of the few survivors.
Hell, that'd be a good use for AI. Let it listen to his rambling and simulate a human response so nobody else needs to bother
A lot depends on the implementation rather than the idea itself. I've read plenty of stories of people stuck on hold with 9-1-1 - including deaths - as well as cases where they've been hung up on by shitty operators.
An AI system might be able to do some basic triage to prioritize calls for the human operators and actually result in faster access/response and saved lives. It might also be able to do things like transcribing information such as addresses or location for responders. If the AI is planned to be a replacement for humans rather than an augmentation though, lives will likely be lost