UPDATE 10/6/16
I decided to contact Nissan Customer Service to see if they were willing to work with me. They told me they'd look into it and see what they could find, I figured they'd knock off a grand or something like that. It took them 4 weeks to get back to me, but they finally did. Nissan has agreed to cover the repair under warranty and will swap out the engine with a brand new one. They told me I should have the car by the end of next week.