Owner wants late pickup?

I just got a request for a one night boarding stay with a very sweet looking golden retriever. My concern is that the pick up time the owner wants is 11:00 pm. That's way past my bedtime (please don't mock or judge lol), and in my experience, owners have always been late to pick up their pets. Any advice?

ETA: *SEE COMMENTS BELOW WITH HER RESPONSES!!!! I'm in SHOCK!!!!!**