Students and staff are not the same thing you realize this right? Did he lie about being there?
He said it wasn't him in a picture, or the the picture was photoshopped, then more pictures turned up showing him there, and a total of five family members were at the club that night. So, he did lie about being there.
Students over 21 living off campus aren't the same thing as students living on campus, or students who are under 21. I don't know his personal teaching on drinking, but when adult students living off campus aren't allowed to drink, it is wrong for him to drink.
Falwell Jr. strikes me as a man who has grown arrogant and careless.