Not sure, if you park up the windscreen will get fairly wet. If you drive with the wipers off your screen will get dirty (depending on the surface) and wet.
not sure why you can’t turn off wipers or lights when you’re on the start line, I noticed that when I was working on the windscreen droplets 🙂 i has to wait until the countdown had finished before I could turn things off. However, it would have to be a programmer who’d have to look at that though, I’m just an artist.
headlight strength is also a coder issue