A deceptive security that the man has succumbed to. If he were a man who moved routinely in nature and in the mountains, he would have noticed the signs in advance. But that's how he imagined himself to be in his vehicle as a connoisseur of the area, the road, the smallest unevenness. I like the way he becomes king and the way Mother Nature teaches him better. Especially interesting that you say he knows the area better than his own body. That's how it is. We don't know how to circulate our blood, how to make our eyes see or how to make our ears hear. It just happens without our conscious involvement. What he has admired kills him. That's where I join @agmoore, that's the irony of the story.

Very creative how you so light-footedly told this moral.