Gonzo.
Well done you, and everyone else involved. I have absolutely no clue as to what the feeling must be to have to make that kind of decision, but can pretty much guarantee if you had not called it how you did, and something awful had happened, there would be people here calling for your head on a stick.
I am not an expert on the emergency services, but trust the guys in charge to prioritise (like caniplaywithmadness said) if something else happens.
100% behind you.
NW3