I get what you're saying and used to share that opinion but, not so much anymore. To be clear, counter "help" can be royal P.I.T.A. It's the "why" that matters. It's a shite job that pays nothing and comes with zero perks. The ones making all of the rules (to rake in gigabucks) all remain safe under their rocks, like the cockroaches. Meanwhile, the counter clerks are basically powerless, human shields; at most they pass along a hearty "f******u" when their frustration level reaches critical mass. Then, you get nowhere.
Since adopting this view, I've found that going out of my way to be courteous has ended with better results than the old way. Still have to shop your DMV branch office and personnel. Doesn't hurt to mind your timing. Midweek, first thing in the morning, seems to be best for finding a clerk in a good (less sour) mood and some are basically decent folks, given a little encouragement. That said, there will always be those who are truly incorrigible...just gotta avoid them. :brick: