NS, I need your help to reek havoc.

SO, my friends and I have a dope party spot. For the most part it is the same ten or fifteen of the same people go who back there, but a few weeks back I had some different kids. One of them decided to be a prick, and is starting to use it on his own all the time. I told him not to, and he kept saying shit like "nahh it's fine, I'll even invite you when I go" and "we'll even help you clean up". I told him no, and to stay the fuck out. He basically said fuck you and that he's gonna keep going. I need ideas on how to keep him out. Here's what I have so far:

1. Go back when I know he's going and hide in the woods with paintball guns. When he comes, shoot the fuck out of him till he leaves.

2. Make a fake sign by the company who owns the property saying the area will be monitored regularly and if anyone is caught they will be arrested for tresspassing

3. My sister and boss's friend is a state trooper, and chill as fuck. She's 26 and parties with my sister all the time. I'm thinking either have her go back there in her car and wait for them, or wait in the parking lot for them to go in, or have me wait back there and call her when they go in so she doesnt have to waste her time waiting. The main problem is actually finding out if she'll do it, and if there is an on board camera, I don't want her getting in trouble.

4. I might be getting a cop siren for my car from a friend. I'd just go back there and wait for them to come in, when they do just drive towards them with the siren on (hopefully they won't be able to see anything but the headlights, but i'm pretty sure that won't work if they get close enough)

5. My sister's boyfriend who is also my boss is a big kid. He gets a haircut like a cops and people ask him if he is all the time. I'm thinking of buying a cop uniform and having him just go back there and tell them to get the fuck out. Maybe get the numbers from them and call the parents to get him in trouble.

6. My sister's boyfriend has a lightbar on the top of his truck. It's orange, not white/blue/red so he can't pretend to be a cop in that, so maybe security for the factory the place is next to. I'd have him park in the parking lot, chase the kids out, and when the kid's leaving pull him over and say they are calling the cops for trespassing. I'd probably use this with the sign option.

7. There is a second entrance that we know about, and not them. Booby trap the first one so they cant get in and we'll use the second

8. go hide in the woods with a gun, shoot a blank and say get the fuck off my property.

So that's basically all I have. the entrance to the place is pretty narrow, and the old one was blocked off cause some other kid got the spot ruined for us once already. Heres a map of the entrances and parking lot, the party spot is in the woods off the map to the top left.