The wind screen ruin the driving experience.

While we pick up the car, I found the wind screen was chipped by a little stone, and took a picture for record. I said to the counter, and the lady told me it is safe to drive. Unfortunately, the wind screen started to crack from the chipped point during the trip. The problem made me feel unsafe while I am driving, however, I drove far away from the pick up city, so it is impossible to change another car. I suggest Hitch to fix the wind screen damage before renting out a car.