Yeah I've always thought that was her best wig. I think they figured it'd be more "apocalyptic" to let her wig look old and tired, not that they thought to do the same with any of the other women's hair. I think Rick turned to Andy for a moment there with that "Whooo" after cutting off Hershel's leg??? He is a phenomenal actor and I wouldn't say that easily, but when has he ever had a moment like that in-character other than this? btw at one point Lori was looking down from above in her blue plaid shirt, holding her belly. Exact same pose we see from her late this season when Rick hallucinates her (after the white dress Lori nonsense is over), and then decides he can't turn Michonne over to the gov. Absolutely, and I don't think anyone believes he has to forgive her (or at least I certainly don't), but if their marriage is over then she needs to hear that from him for everyone's sake.