I don't think it's that Roger preferred the space. The fact was that two boats were taking up dock space that should have accommodated three boats. Kind of like parking your car so it takes up two spaces in the parking lot. People at our YC do it all the time -- space out boats so much that four boats are taking up the space that should accommodate six. That is just plain rude. It's even more rude to leave the boat unattended for longer than the time limit, which happens quite often here, and I'm sure elsewhere.I don't think it's a wise idea to move someone else's boat, without their permission, if it's properly tied up and not a danger to itself or others -- just because you prefer the space they are currently occupying. I would never do it and hope no one would do it to me.
When I park my car, I make sure it's between the lines and not encroaching on a neighborhing space. If I decide to take up extra space, I'm doing it at my own peril.Not sure this is a good analogy, but suppose we were talking about cars rather than boats. Would you like someone to move your car just because they had a bigger car and preferred the space your car is in?
Up here, it is not at all unusual to move boats or raft on when dock space is tight. I would not have a problem with someone moving our boat or rafting up, provided the person was careful about it. OTOH, it's highly unlikely we'd leave our boat taking up too much space in the first place.As mentioned by others here, you had a number of other options beside moving someone else's boat and it didn't appear you had any kind of emergency.
In any event, no harm, no foul. I guess people in Maine are a little less uptight than people from the big city!
ETA: People in these parts are also not at all shy about tying off flopoping halyards in the marina. Someone did that for us once (notice I said FOR is and not TO us). When he mentioned it to us a few days later, we didn't get pissed he set foot on our boat. We thanked him for the reminder and apologized profusely for forgetting to do it ourselves. That is how civilized sailors handle stuff like this.