I think anyone who has read the books knew once they saw tonight's episode title what was going to happen (Rains of Castamere).
Let's put the women and children to bed and go lookin' for dinner
The Rains of Castemere song during that scene was awesome. Catelyn looking underneath Bolton's garments and seeing the mail was fantastic. I don't know why, but it got me all excited.
Edit: I'm sure though, if the TV show is still driving up sales of the older books, he may be able to get the publisher to bend a little on the contract dates.
What pisses me off is that the people who do the show know exactly how the books are going to finish. George Martin told them what's going to happen in the future books.
That's why we see certain scenes hinting towards the future.
Just hurry up and write the books already!!!