Originally Posted by
Swiss Tony
In all fairness, it wasn't as if they were going to be making money off anyone else at that time

True, but quite a few companies would use that as the reason to make sure they charge whatever captive customers they do have.
I had no idea about any leeway. I often land about an a hour or so inside my arrival time and since I can't be confident how fast I will clear I always pay the extra day.