It depends on when the tiebreaker would be played. If the tiebreaker is on Monday after the season (which would make sense as AL WC game is on Tuesday), then you actually put yourself in a position where the team's ace can go games 2 and 5, although it's highly likely that team uses their ace on Saturday or Sunday. If they use the ace on those 2 days and advance to the LDS, then the ace is set to pitch game 1 (if they don't start on short rest in WC game or come in relief).