From the information given, I think the FAA rep was a douche but the author clearly did not plan his route properly. Also, this line was very confusing "cell phones had not not yet been invented."
If that's the case I seriously doubt missiles were pointed at anyone. Clearly this is pre-2001, maybe even back to the 80s. While jets may have been scrambled, I am calling BS on that whole part of the conversation.
The timeline, security posture, and even the flight corridors don't add up. Something is fishy...