You will be okay I bet. People will get all crazy at door buster time grabbing anything and everything. Before they make it to checkout, they'll get buyers remorse and leave those great deals lying around. Consequently, employees will spend the rest of the night restocking the shelves with abandons. We're talking 20+ carts of abandons at my store after the first 2 hours!
I have worked 4 Black Fridays at Target. Many times at the end of an 8hr shift there are many of the door buster deals left.