Having dealt with a number of property line disputes (not with my own property; fortunate that I couldn't ask for better neighbors), IMHO the best approach to these issues is to use tact. It can get extremely ugly with people calling wanting their neighbor's kids charged with trespassing for coming on their property to get a ball, criminal damage to property since the neighbor mowed slightly over "the line", allegations property stakes were moved and even violence.... Ridiculous stuff. Next, the border is blanketed with no trespassing signs and video taping starts. Often at least one party intentionally begins antagonizing the other to try to catch them acting disorderly, etc.... on video. Often they get obsessed with the dispute and do not listen to any reason. Then the lawsuit over a property line. Total waste of everyone's time and could generally have been avoided with some tact.

So good choice OP IMO.