Well, I have to admit that it was not more than just a thought. I guess you can find some international flights departing very late in the evening (2200 or later). You show said ticket to lounge attendants. You clearly have a "same-day international ticket", and tell them you are planning to check in shortly before the flight (perhaps you've got to do some shopping and you want to put extra stuff into checked baggage). I can't see how they can possibly refuse entry!