I failed my (US) driver's test because, while I looked over my shoulder to check my blind spot, the proctor judged that the window was too fogged up for me to b

I failed my (US) driver's test because, while I looked over my shoulder to check my blind spot, the proctor judged that the window was too fogged up for me to be able to see. Granted, I should have known better how to work the defrost function in the car.