Well, skinny dipping after dark would be out. Who knows how many SS divers' eyes would be peering up from the depths around the bay!
Much activity surrounding the premises would be monitored, I would think. More so a few weeks before he comes to town and during the visit. Plain clothes surveillance, video cameras strategically placed, etc. I'll lend the SS the motion-activated camera I gave hubby a few years ago -- it's still in the box!
I would imagine the poor people of Wolfeboro will see gridlock when he's on the move, but that would be about it. Dignitaries would not likely come to NH, but the White House or Camp David. Logistically a nightmare for all. They'll likely not draw any more attention to a visit as necessary, unless it involves good PR for the WH.
GB