We got ours when we went in as a group, the doors opened @ 3PM for us in order to go to soundcheck. I'm not sure why you wouldn't persue the items until you got them last night? I Personaly never would have left the show without them. It's likely the tour has moved on and you may be outta luck. Hopefully not.
That said, here's some information will help you:
A) SAVE your ticket!! I believe they were tearing UPC code from the tickets when you got your swag so they'd know if you'd received it.

The onsite event person/hostess was Sondra; but I don't have a last name and don't know if she's with the site or with the tour.
C) A customer service email on the Package letter is: slocustomerservice@slotix.com
Hopefully, that helps & good luck.