If that mysterious transmission was made by a fire truck or emergency
vehicle they should have clearly identified themselves as such and given the
reason for their recommendation not to evacuate.
And recommend is all they can do, the Captain is the ONLY individual
with final authority in an evacuation decision.
Since the transmitter never identified themselves I find it very unlikely
it was emergency services, why would they not do so ?
Seems a bit more nefarious to me
