Which of the Maryland MVA (or DMV) locations is less busy for international people with immigration doents?

I didn't have to camp out overnight. I took my wife to get her foreign doents reviewed at 7:15 AM on Friday, July 7th to the full service MVA facility in Gaithersburg and got in line at 7:25 AM when they opened the doors and started letting in small groups of people to get their doents verified. Once they verify your doents, they issue you a ticket and you exit the facility. You then proceed to lineup with everyone else outside at the door for driver's license services. At 8:30 the doors open up, you go to the information desk to get a number and wait for your number to be called by one of the clerks. The clerk takes the ticket you were issued by the doent verifier and begins processing your information and administers the vision test. If everything is in order, they issue some paperwork and you proceed to to take the law/knowledge test. I believe the road test must be schedule by appointment so I am not sure if you can take the road test the same day you do everything else. Good luck on your quest for your driver's license. Send me an email if you have any questions.