I couldn't find any more the thread, but some time ago, somebody asked, if it is possible to get a one day entry without an invitation of one of the guests. I have asked today at the reception. It isn't possible. You need to know a guest who is present at the hotel. Greetings Roman
I visited on a day pass back in May and although I knew of people staying there I was never asked who or what room number etc. It was something like $60 but only lasts until 6pm. Maybe they've changed the rules since then or maybe it was because most of the front desk staff know me anyway, but I find it strange they would turn away people willing to pay $60 for a few hours drinks and a bite to eat.
Yes, it's the pass for about $ 65 until 6 pm I'm talking about. It wasn't possible without invitation of one of the hotel guests. I was willing to pay this amount, but I also respect their rules.