If you can climb into a boat at a dock, you ain't handicapped IMO. It's not about cutting anyone a "break".
Getting into a boat is not about accessibility since they aren't set-up that way. If you can climb into a boat it's almost like making a disclaimer that you have sufficient mobility to not require ANY handicapped placard.
If you have an issue with ability to climb into your boat then spend the money to make it easier on you and equip your boat as you see fit. An extra 200 feet of walking the dock is not going to make a difference. Tying up multiple dock spaces for the very infrequent use of already limited dock space is selfish IMO.
Typical lazy American style shines though again where nobody is reponsible for themselves and everyone else should bow to "my" needs........
If I go to the docks and the only empty spots are the handicapped spots, I know where I'll be tying up