I have flown into the SFRA and FRZ 100+ times and would recommend, perhaps just for these instances, to CALL and TALK to someone capable of talking SFRA and FRZ, as things like TFRs and temporary SUA pop-up all the time in that area. The folks you talk to (usually Potomac) will keep you out of trouble. In fact, I would get THAT number and file exclusively with them (that is what I do).
Perhaps you already do this and I am "preaching to the choir" about this, but in this region, SFRA and FRZ violations are somewhat common over needless and usually totally preventable procedures.
Best wishes flying into the area - and I highly encourage folks to continue to fly into the FRZ and land at College Park, which has an incredible FBO with a world-class aviation museum attached!