...You know you will be asked to leave upon entry(sounds errily like denial of entry), as read here, yet enter anyways.
I have no reason to believe I would be asked to leave just because it happened to somebody once, even recently.
In fact, that one instance stands in stark contrast to normal Steak and Shake policy and procedure as read on their official letterhead and observed in practice at countless other times and locations.
So I neither know nor have reasonable cause to suspect that this was anything but an odd fluke. I absolutely have not seen any reference to a denial of entry for the public.