The last couple of times I applied or made a change it usually started on a Sunday and had the cards in hand the following Saturday. I wouldn't worry about it going over a week for delivery. I'm not sure they'll expedite a new account but, I think this might be the exception with the hefty AF attached it might show up Tues. via UPS / Fedex w/o any intervention.
Congratulations on the approval with a monster SL!
they certainly will on the CSR as have one and had new ones overnighted many times just gotta call and ask