You have all the gear, plus the reciept. I would take it all back to the dealer for a full refund and take your business somewhere else. Get the $400 cheaper price, take the $400 you saved and buy a bunch of meat and rubs. Throw a party in honor of "Your GF of the Year". Win-Win and girlfriend never knows.
Picking it up and throwing it down on a Backyard Bomber MJH....