Oh, and here's an "Is it plugged in?" question for you:
Which branch did you return the movies to?
I'm assuming that you returned them to the branch that you rented them from, but at the same time, it's pretty common for people to return items in "on time" but not to the correct store, (which means they can't get checked in...but then, you still should have gotten a call to let you know that).
Also depends on if the stores have a policy in place for returned to wrong stores. At the video rental place I worked, because it was easy to get confused as to which store a rental came from since we had about 5 stores stretched across the one main thoroughfare, we'd call the other store so they could check it in and then mail them the movies when we could.
I once got a few tapes returned that were from another state and called those in. We all had a good laugh over the distance since I was in Illinois and the movies were from Alabama.