Wiper problems of the 2016 Kia Motor Sedona

Since the lease from nemet kia started in June 2016 the exterior of windshield has had a film that smears the window and obstructs driver view in the rain. When dry the window is clear but in the rain the film becomes an issue. There wasn¿t much rain during the summer so I dealt with it hoping it would wear off through regular use of the wipers. I have also cleaned the glass numerous times with negative results. When the car came in for the first service in sept. 2016 the tech tried to remove the film but they could not address it properly (noted on work receipt) and the film is still there. During the heavy rains of the last few days the car is very difficult to drive due to the smeared windshield. The problem gets worse when driving at night in the rain. Kia dealer kept car from October 11-14 2016 and attempted to clean window and verified the problem required replacement of windshield. As of November 21, 2016 the windshield has yet to be replaced. Kia and dealer keep pushing back replacement date and the car is unsafe to drive. Kia has been contacted and they assigned the issue case #k3296615.