A man who's wife is "missing", I would think would have saw to it that the laundry was done and have his lovely wife's clothing clean and hanging in the closet when she returned home. That's a long time to let the dirty laundry go! It being wadded up and stuffed in the drawer is just another bizzare that Snott WOULD do along with all of his other behavior. Trying to sell her car, and the home with the furniture in it!
My husband is a laundry freak. He does it all. However, if I was missing I don't think he would think to do it at all. Laundry would be the last thing on his mind. Remember Scotty was out putting up flyers and such. I don't find the fact that he let the laundry go bizarre at all given the fact that most men don't do the laundry.