It sounds normal through the down shifts. They wanted me to leave the car overnite but I passed on that option at this point. Others here mention they hear a noise at an initial cold start up. I was comparing it to my wifes 2010 Maxima that does not have this brief sound after a cold start up.
I mentioned that to the dealership and they naturally said the two cars had completely different exhaust. I was like mehh crap. Oh well, I most likely will pay them for an oil change and leave it overnite. Something tells me this brief start up noise is going to end up being the nature of the beast.