1. Try a moist(try filtered water) mircofiber towel on the inside of the window if the tint has been there for a couple of days already.
2. Peanut oil is good. If you don't want to try that, take a microfiber towel and dunk in into a water/liquid dishsoap mix and give it a good wipedown, should come off with a little elbow grease. Be careful with getting on the car, you'll probably want to rewax the car if you do.
3. I was distracted by Shakira in your sig.