Automatically clear the backup camera lens in wet weather

Often, after driving through rainy weather, I will turn the car to back up into my driveway, and I will have zero visibility through my backup camera. I have to run out of the car, wipe it off, and then finish my backing up.

Newer Teslas should have a small compressed air source to blast away drops of water and debris when the car is shifted into reverse to clear the camera lense.