OP here - I heard back from the Mom. Her explanation really makes a lot of sense to me. Here it is:
LOL, no problem, I don't mind telling you.
He ABSOLUTELY will not be getting those gifts (the ones that were returned), or any replacements, for the holiday. There were three gifts hidden in a different place in the house that he didn't see, so he'll get those. But that's it. And if he'd seen those, he'd be getting nothing from us. He gets things from other family members/friends, obviously, but I'll be doing nothing beyond what I did already.
He's 9. He knows better. It isn't even that he snooped at his presents, it's that he was VERY underhanded in how he managed to go snoop, and then tried to lie about why he was in the bedroom, and what he was/wasn't doing (said he wasn't looking at presents, that he was looking for the cat, but yet he turned on the fan AND the shower in the bathroom to pretend he was doing his normal evening routine and avoid any suspicion. Sneaky.).
As I explained to him, life and family is about trust. If I can't trust you to respect me as a parent, and my room as my space, I can't reward you with presents. And if I can't count on you to tell the truth when you are caught red handed, well then, that's a whole other problem. Plus, the presents wouldn't be a surprise, so there's no point in giving them.
I know, it sounds tough... it IS a tough punishment. But I think it will be a punishment that he remembers. When he was at the service desk returning his gifts, he had to tell the clerk why he was returning them and she nodded and said that she remembered her brother having to do the same thing as a child, and that neither he nor any of her siblings EVER snooped for gifts again. If he doesn't snoop, it will be a bonus, but if he has some more respect for privacy and personal space, I'll consider the lesson to have been a success.
Mom's side does make sense. I hadn't even thought about the personal space thing...he will in about 4 years though!
Still not feeling good about the public humiliation part, but the rest I am o.k. with. I agree that sometimes, the easy road gets used too much. The road of a mother is full of guilt..I would rather feel guilty that I was too harsh at 9 or 10 or 12 then at 35 sitting in a courtroom.
Kelly