windows/mud and dirt =?

Went to a great off roading place last Sat and of course got nice and dirty, mud and dirt wasn't that bad but of course I had some on my windows, I needed to roll them down a few times for communication, but when it goes back up, you get the most horrible sound ever and I assume I could easily scratch the window or when i get tint it'll scratch that for sure.

What's the rule then when off roading? always keep your windows up? or if you do bring them down, don't go back up? or just deal with the screeching scratch sound?

I did clean everything up and rolled the windows down and cleaned the felt that the windows slides down on, but for sure there is dirt in my door and I assume others have this too