You speak as though that was your first squabble while driving. How long have you been married?
We have the occasional disagreement while driving, and it's usually in Portland, our nearest big city. Nowadays I avoid it like the plague, but sometimes it's a necessity.
I've been going to Portland, on my own, since I was seventeen. I know my way around, better than some who live there. I know what areas to avoid, and the areas that will be backed up with traffic at any given hour. However, my wife thinks her GPS knows the way better than I do. I'll concede that sometimes, although not very often, it does. But usually, it doesn't. You should hear the commotion when I fail to follow those instructions! The most satisfying part is when she says, "Okay, you were right."