Corrected entry: When the Governor is teeing off on top of the walled barricade, we can see the tree line in the background is far away at the edge of The Other Side of Woodbury. After Merle has a chat with the Governor, we now see the trees are magically a lot closer.
Corrected entry: Carol's head wrap is well intact as she and T-Dog find escape down a hallway during the alarm system chaos. Soon they run into another pack of Walkers, and he sacrifices himself in order to save her life. As she runs past him, and toward another escape door, her head wrap is still intact as she opens the door and runs off. Later, when Rick and Daryl happen upon that same hallway, and T-Dog's remains, Daryl glances downward, however, and picks up the same head wrap, now covered in blood, alongside her bloodied knife.
Correction: We do not see what Carol does after she leaves. It is possible that she returned and left her head-wrap. Also, her knife was found later on in the episode.
Correction: The trees were the same, they are different distances depending on the angle and eye coordination.