No matter what you do, these neighbors will find a way to mess it up as soon as they hear you shoot should you find a way to successfully gun hunt. About the only thing you can do is bow hunt in a way that they do not know where you are. And forget about the gun hunt unless it is someplace else. And never let them or any of their friends know if you got a deer.
You might seriously consider moving or saving up to buy a nice chunk of land.
I can totally relate, believe me.