From an email:
“DC Locations[4-8pm] :
Chinatown location @ 703 7th Street, NW (next to Verizon Center)
Georgetown location @ 3120 M Street, NW
Union Station location @ 50 Massachusetts Avenue, NE (Lower Level Food Court)
MD Location:
Bethesda location @ 7237 Woodmont Avenue (next to Landmark Bethesda Row Cinema)
VA Location:
Pentagon City Mall @ 1100 South Hayes Street (Lower Level Food Court)”