Since his Delaware home is approximately 220 miles from D.C....
This appears to be incorrect.
According to Bing maps, from the tidal basin in D.C. to the farthest point away in NE Delaware is 108 miles as the crow flies. The Amtrak timetable states 110 miles.
Either way, it makes his mileage whopper even more implausible.
When I enlisted in the Army in '74 the Air Force recruiters acted like they were doing you a favor by deigning to acknowledge that you were even in their office.
I think they had a several month waiting list to even apply.