Oh sure, make me have to narrow it down ;-)
Police calls, fire calls, ambulance calls, and really just anything that would be good steady listening for the trip where FM radio would be normally cutting out.
I figured maybe Highway patrol, and then any channel that would supply constant chatter. I mean there is a lot of frequencies listed but we have all had times where there was no chatter on any of the programmed channels (200 channels and nothing on).
Please keep in mind that the Pro-94 is analog only, non encrypted.