You don't mention your air
draft. There are a couple of other
marinas in DC that might
work depending on your air
draft.
In
Annapolis, that size Jabins puts you on the floating docks and is likely prohibitively expensive. Port
Annapolis may have something, but 65' is pushing it. Might be worth a call. It's about 50min to Arlington on average. Rush hour might be much worse.
You might check out Edgewater. There are a few marinas there that might have T's available.
There's Belmont Bay in Woodbridge, but they're usually pretty full too.
You're going to have to work the phones, unfortunately. Good luck!