The Good Woodsmen
It seemed to see that they were "catching ip with themselves" as they re-entered this world.
That's what I got from it. It was like time was glitching or something to that effect and they were trying to get congruent with their physical beings.
Ok, that sounds really lame, but not sure how else to explain my thought on this.
They did look like the Woodsman when they move in and out. The Woodsman seem to be in their element and in control in that state while the Sheriff etc can't remember, probably because their human minds can't process it. I wonder if Cooper will remember anything from his 25 years if/when he's back to his old self