I was told by a friend who lives in Maine that there are dams upstream and downstream of that boat ramp.So they found his truck near a boat ramp. And he owned a boat. I wonder if the Coasties are looking for him too?
Makes me wonder why they keep focusing on the house, unless it's close to the water and they don't really think he took his boat somewhere.
I don't know the boat ramp location, so I can't verify.