dealership overfilled my new truck's crankcase!

[Bus Ted Knuckle]

I bought a new to me 09 chevy 1500 yesterday. Checked the oil for the first time today, and it was way over full. I drained out SIX extra quarts of oil. I know I should have checked the oil before I drove off the lot, but I was just too excited about the deal I just made on it.

I drove it about 100 miles like this, should I be worried about damage!?!? It is a 4.8.

Here is a pic of the new ride anyway...please tell me I have nothing to worry about!



I know this should have been posted in the 07 and up forum, but I need some feedback on this fast, I'm going back in the morning to get new tires put on (their dime) and I need to know what I need to do. I already have the six quarts of oil bottled up to had back to them when I pull into the service bay.