I hunt public land often and with pretty good success. Last week I felt bad....I was sneaking into what I thought was a remote spot, got to a great looking area and looked up...a guy was waving at me from a treestand. He had worked hard to get in there, and I had screwed him up. I waved, mumbled a quiet "sorry buddy" and turned around leaving the same way I had come in.
My intention was to get away from easy access spots....so was his. I suppose he might be telling the story differently, about the jerk with a recurve screwing up his hunt.
PUBLIC land....we all just need to be polite and enjoy our time in the woods.