College Park with the metro stop sounds good. I'm just wondering if it's worthwhile to jump the FRZ hoops if one flies to DC only once every other year. How long is a FRZ permit valid before you have to jump the hoops again?
It's good forever, but it would behoove you to call or check the websites of the airport you are going to operate in/out of. Some of the local procedures do change from time to time.