Maybe they were looking for a place to sleep, that's a weird situation, coop broken into but nothing or no one missing. Times are tough due to covid19 & they are going to get worse before they get better, unfortunately.
Less eggs are laid with the shorter days, too, so they were really rummaging around looking. Not nice trying to steal eggs & really idiotic leaving your birds vulnerable like that.
I live on a country road, unfortunately not as "country" as it used to be thanks to greedy developers. I'm on a private, gravel, dead end road but we are getting more traffic all of the time. There are signs at the beginning of the road, rude people proceed anyway, they want to "visit" the...