I leave mine out there periodically if I know I'm returning to that spot in the AM. That's not mine though. If you see a Summit Viper PLEASE don't steal it. I cover mine with pine straw though. It's just so much easier to not have to pack in and out on consecutive days. Don't forget they may have walked out to get lunch or something and may be coming right back.
I would have turned it upside down or moved it to a neighboring tree just to mess with them. HaHa