If my crystal ball is correct, as soon as your neighbor (who is posting your land) sees the surveyors flags, will become instantly compliant.
I wouldn't discuss boundrys fences etc with the owners of the lots behind me, until I had the survey completed. Survey is done but I still need to go pick up the map and pay the balance. Ever since, every time my wife or I go out back someone new approaches us, wanting to discuss it. One guy whom I up to this point didn't care to much for has become rather friendly. This week he got a burning barrel (used to just throw his bush on my property) The horrible looking fence he installed last year is a couple feet on my side, and was put up with out a permit. He has offered to let me take it down and to tie my new one into his. What a guy.
I know it's off track but I'll tell you why I don't like the guy too much. I bought the property in jan 2003, after a 4 month unpleasant closing. I work 1/2 days and 1/2 nights. I would come home in the morning after a snow and find foot prints around my house. I talked to my buddy next door because they went through his front yard too. Nope It wasn't his kids getting their dog as I had hoped. We both got concerned and began to watch out. What really got us was the fact that the person stopped in front of my french doors on the back of the house. The room that my wife watches TV in at night. Fast forward to the next spring I'm tearing down the pool and deck built over my septic tank and leechfield (annother story) And the guy in question shows up wanting free wood. I told him to come over and take some off the deck (24'x26') before I finish taking it down. Two weeks later deck is down, all salvagable lumber cleaned of screws and stacked to go up in my loft, and pile of new lumber stacked next to used lumber. My tenant calls me at work and tells me the guy is there helping himself and says I said to take anything he wants (including new stuff). I come home The guy is at work by now, so I go on his land and load up all the wood and take it back, and put in the loft. The guy comes over can't understand why I took the wood back. He proceeds to point out some repairs that I need to make on the house that he noticed while WALKING HIS DOG AROUND MY HOUSE THE NIGHT BEFORE!!!!!!! I told him that wasn't such a good idea due to my temper and jumpy trigger finger. Now He thinks I'm crazy GOOD!!!! and doesn't speak to me untill I got the survey.
A good survey as well as providing peice of mind can also sort things out between you and an annoying neighbor without further confrontation.