Steve Mitchell's quick departures

I listened to parts of two Dangerous Assignment radio shows on the way to work today, and in both of them the Commissioner calls Steve Mitchell into his office, gives him his assignment, and tells him that his plain leaves in an hour. Presumably the office is in a major metropolitan area, where trips to the airport can be hindered by traffic problems. Getting to the plane was not as big a problem in those days as it is today, but it still took some time. I guess Mitchell carried a full set of traveling items with him at all times? Maybe he got a police escort to the airport? I don't know, but it seems like the Commissioner habitually cut the margin awfully fine.