We have a road that follows most of the coast and makes for much easier scouting than most inland spots. With that said, I've driven it and have seen ducks every 100 yards and I have driven it to only see one raft. They change where they want to be, but there are patterns. If the weather will be similar, take a drive the day before.
Also, there is a reason there are more Maine and Mass sea duck guides.... haha
Careful, it can be addicting.