I would thank him for locking up and taking care of the last minute stuff and ask for the key back. If you had a friend that did lock up for you, you would ask for the key back once you got home right? Don't make it into a big deal. I can't swear he won't but that is his problem, not yours. Just don't get sucked in and treated it like I said, a friend situation.
kat
Me-53(and learning!) S24, S21, D18, D17 Just keep swimming, Just keep swimming. Dory