Why this and not that?

Services are segmented and this is not some all-inclusive resort with different colored bracelets which staff can use to identify which guests are entitled to the top-shelf booze and who gets the swill.

Perhaps if OP had asked, someone would have told him to go ahead and thought nothing further of it.

This suggests asking before taking.

I do witness people who at least superficially appear to be well-dressed and well-fed raiding lounges as though they are feeding a large, starving and poverty-stricken village. It is something about the word "free" which for some people compels them to act this way. And we wonder why lounges and their offerings go down hill?