I know what you mean. My job is the same way and its like they expect me to do shit no matter what time Im done.
Ive complained about it a few times and its gotten me nowhere. I dont mind a little overtime but 13+ hours is nuts.
I really want to get to LVD atleast once but I doubt Ill make it tonight and next Wednesday Ive got a concert and then the next week is it and thats always a clusterfuck with over 300 cars.