Was rummaging around the internet tonight and found a new Sprinter dealer in my part of the world.
Mercedes-Benz of Midlothian
12200 Midlothian Turnpike
Midlothian, Virginia 23113
Service number is (804) 545-9633
They sell and service Sprinters. Don't know how long they've been doing Sprinters. I don't presently have a Sprinter and so haven't need any Sprinter service.