There is a reason why people keep telling you it’s just kids being kids....because it is! I would say just be a man, clean your house and get on with life.
Think about it from their perspective. These guys were having fun, not hurting anyone and a grumpy old man killed there fun. They were left bored and frustrated, so they got you back the way they know how. It’s not right but its how kids think.
But i would like you to actually try and get them back ...just to hear the stories of how far they took it. Trust me, teenage boys have no fear, lots of free time and very poor judgement. go get 'em...