Always, ALWAYS, ask to speak to a supervisor. The morons at the DMV usually only know how to do a limited number of procedures. The bright people at the DMV will REFER you to their supervisor when they don't know what to do. If you are a AAA member, (here in California anyway) you can get a lot done in their office. They usually have more incentive to help. By all means keep cool. Pissing off a G.E.D. hopeful security guard can get you in lotsa trouble.
Maintain thy airspeed, lest the ground arise and smyte thee.
A mile of highway will take you one mile. A mile of runway will take you anywhere.