I Leased an Audi, I want to get the windows tinted. If I do so, will I get whacked by the dealership when I turn it in?

Most of the times, tinting adds value to the car, so the dealership won't normally care, unless the tint job was done illegally (shade laws vary by state, so check with your state) or if the tint job was done poorly. I would double check with the dealership, but most won't care.