Update: I had my interview today with Lee Sommer, airport manager at KCGS via FaceTime. He was very nice and it all went smoothly, no biggie. I told him I was planning to fly down on Monday and he indicated he would try to expedite my PIN assignment, then called back a few minutes saying they would be issuing new pins on Friday and there was a good chance I would get it. So, fingers crossed...
So now comes a question about filing for the FRZ that wasn't clear in the online course (to me anyway). The course mentions "Washington Hub FSS" as the necessary facility to file your flight plan with, whether IFR or VFR. My plan is to go IFR. Does that mean I cannot file to or from KCGS using Foreflight?
Also: there is no mention of this facility on the A/FD page for KCGS, and the FSS contacts listed in Foreflight say "Leesburg", not Washington Hub. Is it the same facility, or is this some secret number you can only get by talking to someone at one of the MD3?