Are you taking the train, driving or flying?
If you look at the hotel info
Lexington Hotel-Washington D.C. in Oxon Hill MARYLAND part of Lexington Hotels
Even though it's in Maryland, it's considered the Lexington Hotel, Washington DC.
I believe the closest airport is the Reagan Airport. The website says it's only 3 miles from the White House (that's DC) and 5 miles from Old Town Alexandria (where the Friday night showcase is being held).
When flying somewhere I'm not familiar with I always print out directions to all the places I'll need to do so that I'm familiar with the area and have an idea of what taxi/transportation rates might be. I'd also call the hotel and ask if they have a shuttle from the airport (some do) and ask how often and how much. If they don't have a shuttle, all the more reason for you to have directions printed out- so you know the taxi will take a reasonable route to get there.
Maybe other Bhuzzers are staying at the hotel, too and you can taxi together to the Fri night show.
