I am with you except on the overnight. Yes, 11 is late, but it is his time and if he wants to wake up with her, then that is his right. She only has ROFR for the time he is gone - it does not extend to the overnight.
As for the insistence of staying at his house - I like the idea of saying out loud - I am sure that you would feel very uncomfortable knowing that I have free reign to look around your house, your things, etc., so I would prefer to do it at my house.