These kids are driving me UP THE WALL

Not mine, mind you..cause mine are perfect little angels. *snort*
They have decided to move some more families into our housing area, and there are quite a few kids. Since we have a community yard, so to speak, and we have the trampoline, imagine where they all migrate. The kids live down the street a ways, but they keep coming over here.
There is one family with 5 boys, and they are the problem. The three eldest I should say, since we haven't ever seen the younger two.
They ring the door bell over and over and over and over and over...and bang on the door till someone answers. I have told them repeatedly to stop ringing the door bell and pounding on the door. Not only is it annoying, but Emily has decided to be a fuss pot and not sleep, so I have about 10 minutes (ok that's an exageration) to get any work done while she sleeps. Every time they come to the door, we start the cycle over. I'm about to go tell their parents to have a talk with them, since they obviously have no intentions of listening to me.
And why do they do this? To say, "can I have a snack?" or "I ran through your sprinkler, can I have new pants and a towel?" or "Dillon isn't playing the cops game right, you need to come get him out of jail" When that was said, and I told the boy I wasn't going across the street because of their game, he informed me, with much attitude, that this was NOT a game. I told him that yes it was a game because he wasn't the real police. To which he got extremely huffy and stomped off.
My kids have all been outside playing and yet these neighbor kids continue to come to my house and tell me to send someone out to play with them. Sorry kids, I don't have any more to send out! I would ignore them, but as I said, they don't stop ringing and pounding till you answer.
UGH..I've so had it with them...and just think, they only moved in last week.