I also like the fact that they returned LaGuerta back to her relentlessly political **** self that she was for the first two seasons. Yes, it's nice to humanize the ass-kissing boss to an extent, but it's not like she'd truly evolved as a person.
Combine that with the numerous mistakes Dexter has made this year, and you have a hell of a lot of seeds that are already planted for a hunt in season six.
Unless the hotel was checked out under Lumen's name (and Dex doesn't have an alias with a CC), that broken door coupled with Cole's disappearance will raise some questions.
A great shot is when you pull it off. A smart shot is when you don't have the guts to try.