I mean, Maybe I'm just an old man and you should get off my lawn but jesus, what could possibly go wrong here? You give it away willingly then expect there to be no abuse? Why would they give you the right to sue? You just gave them a key to your house and they assume you'll accept any licence because you're so desperate for the convenience that you won't say no anyway.
If they wanted to install an amazon locker on my front porch, that would solve the problem for everyone. But that's not a cool project to work on with computer vision so . . ..