I know that the people in the DGE office, unlike the DMV, are not trying to make life difficult for students. They truly do want to help each of us. However, their hand are often tied by rules and weighty beaurocracy. They are there to help you and will do so as they are able. Be courteous and nice to them, not because by being nice they can help you any more or less but because it is the right thing to do.