Blues definitely should take care of it. If an ump is paying attention to the game at all, he should be one of the first to realize if something is intentional or not (IMHO).
As for crowding the plate, some batters do that trying to intimidate the pitcher, but they have to know that the possibility is there of getting hit. As my DD's pitching coach tells her, when you are pitching, that is your plate and your strike zone, and you have to control it rather than let the batter control it.
Then, when he works with her on batting, he tells her "this is your plate, your strike zone, not the pitchers, etc....."