Oh yeah they'll probably accommodate you if you want to sit in their fire truck. Firemen encourage people to come check out their equpment (!) that didn't come out quite the way I hoped. You get what I mean - they like to have visitors.
What really blows me away (giggity) is that firemen and fire jumpers get paid so little money - I made more as an office clerk than they make, and that really is unfair. So we should make it up to them however we can.