Can I leave a tkt for my friend at Will Call?

I bought the tix at the 9:30's box office and have both but want to go in before my friend gets to the club (he'll be late) and I don't have a cell to just go out when he gets there. Can I leave his tkt for him under his name at the Will Call box?

Yup. You will just have to give the ticket to the box office and they will give you an envelope upon which to write your name and the recipients name.