Yep…I’m kinda aware (contract of carriage or something like). The civil libertarian in me say that’s problematic, though. Some rights can’t be signed away: I can’t sign over my freedom and become a slave in perpetuity, for any consideration, for example. Or sell my kid in same way. Ignoring the “federal” aspect for a moment, this would be a lot like once I go in a public theater to watch a movie, I wasn’t allowed to leave, no matter what, because “shhhhhhh…we’re watching the movie”.
I am not saying no repercussions could result, e.g. maybe I can’t ever come back to theater or fly on that airline again, but effectively kidnapping someone? And then arresting them because they don’t feel like being kidnapped?
I get the practical considerations, but I also get the practical considerations of never letting anyone leave their house without a government ‘minder’…everything’s much safer that way!