[banannaise]

This is an airport-specific vehicle that was on radio with ATC at the time and had clearance to cross the runway. Nothing in your comment is correct.

[glitchc]

And yet you chose to respond! Indeed I stand corrected on the onsite firehouse, LaGuardia does have one but many airports do not.

[nradov]

Bullshit. Pretty much every airport that handles FAA Part 121 flights has dedicated firefighting apparatus and crews.