I think an important difference is if he “owned” and solelt possessed the data, the warrant would be his to fight (or not comply with) in court.

When someone else possesses your data (not even sure ownership matters) they may just share it and if you’re lucky you get an FYI in the mail. You’re not even necessarily a party to the request and you’re banking on a company rep to fight for you.

IANAL but you’d hope fighting the warrant yourself on the interior cameras would be easy but definitely not necessarily the case.