It sounded like you wanted to help all the other passengers reach their loved ones. I would hesitate before taking on that responsibility. I'd also hesitate before taking a bus for my own use that someone else could use to save the lives of others. . . .
One advantage of a bus is that it could transport more people in a single vehicle, a good idea in a mass exodus.
I'd expect the bus to have some communications, and maybe a first aid kit and possibly other resources.
These buses have a radio, a fire extinguisher and several means of emergency escape but that is all of the emergency equipment that I know of.
Jeanette Isabelle