I've gotten in after 11:00 a couple times and never had a problem. A couple years ago we got bumped off of flight after flight, and called Tiffany each time. Each time they said no problem, just let us know. FInally we ended up in Tampa and CO paid for a cab to WDW! I called Tiffany and cancelled for that night, but used them to get back to MCO for the way home.
Anne