The last time I went to the DMV, there was no line. I took off work at 2:00 and I was done in less than 10 minutes. I would have gladly spent 11 minutes instead to not have to carry around some crappy receipt. I usually have to wait, though.
Really, I think every DMV should have its own website with a camera showing all of the people waiting to get their license. It would let you know when it's worth a shot going down there, and it really would be great entertainment. The anger, the anguish, the confusion all in those poor saps' faces.