Riku was, unfortunatly, none the wiser and went on about his day like everything was normal. Eventually he went back to his room after kissing Sora goodnight, completely oblivious to everything going on.
Hayner also went back to his room eventually, when he knew Roxas's aunt was on the way.
He emptied his backpack out on his bed and began backing some clothes... how much should he bring? Maybe just enough for a couple days... his home was right there, and he still had a lot of his things there.