I was working on Klamath Falls, Oregon Airport (which is 50/50 military and civilian airport) in summer of 2001 (we were paving around a new FBO) when out of the blue I see this Mercury Monarch with this old pair of barely peeping over the top of the steering wheelcoming slowly down the taxiway toward my project. So I step in front of the car and put my hand up and stopped him. About 30 seconds later 3 cars full of Air Force security personnel pulled up and and drug this 84 year man out of the car at gun point.
Turns out he had been to the base PX and made a wrong turn and ended up on the airport taxiway system (which has the same road markings as a county road). Also turned out he was a D-Day vet.
Long story short is he breached the Air Force side of the base and was let go about 2 hours later. I never forgot that considering 3 months later was Sept. 11, 2001 and thnking what they might have done then...
Randolph-Brooks is like that too. You can easily turn onto a taxiway if you aren't careful.