watched this for a while,. and it has gone too many paths...the main issue is what is the definition of "containment area" I did a quick search and it appears to not be in the definitions section...

but if he came on your property, took your property, and did nto notify you of anything, leave note, inform, seek to inform or anything, the simplest thing that could be stated is he was acting rudely...

worst case, he has unjustly removed personal property, and potentially attempting to conceal or tamper with evidence...

either way, you need to document (preferably pictures date stamped) but I think you have probably moved the camera, and or have driven over property...if there are still tire tracks from their entrance, I would take pics of those...if there are footprints in mud or dirt, I would take pics of those...

either way this goes down, he who can prove the most, and has the best documentation...will win...if they ahve evidence, and you have none...then all you have is an internet thread with a bunch of opinions...