I was gonna ask you is that how you used to get around? Was it effective or not worth it? Having a rack and bags n s#. Or would it be smarter to just have a underseat mount bag?It takes practice, patience, and some trial and error. (Hah!) Know your bike extremely well. Know your exact set up and learn to develop a routine for disassembling your bike, (quickly!) getting it on the train in as few moves as possible.
You will likely arrive at a time where you will be laughing at the ridiculousness of your bike being in several pieces, with a flat tire, in the middle of a fenced off yard, while a worker drives by and sees a scraggly looking person desperately trying to....GODDAMNIT MY BIKE PUMP MUST HAVE FALLEN DOWN THE SLIT NEXT TO THE CONTAINER!...
I remember one time scaling a 10 foot barbed wire fence with a fully loaded bike, in an IM facility in Jacksonville. In the middle of the day over 6 hours piece by fucking piece, with my makeshift camp behind a parked line of truck trailers. Fun times! In retrospect it would've been much quicker and simpler to have just biked out the MAIN GATE. Which I attempted and got cold feet right in the middle of, so resorted to plan B.
It's pretty sweet the other 90 percent of the time though!