Zombie Apocalypse

This your first solo flight! You're a pilot and you finally got your license! You have decided to fly over the Nevada desert to go see family. You have taken a small outdated Cessna. It was the only plane your family could afford. You have a pocket knife with you, and some survival supplies that your mother and father insisted you on bringing; Those include: Five days of Water, Five days of food, A sun vail, and a GPS locator.
You have just leveled off at a altitude of 10,000 and you have some time to do whatever you like, the plane practically flies itself!