¯\_(ツ)_/¯ If I can't see because of rain, hail, intense sun reflections, frost re-forming on my windshield, etc. then I pull over and put my flashers on until the problem subsides. Should I have kept the 4700 lb vehicle in fifth gear at 55 mph without the ability to see in front of me in each of these instances? I submit that I should not have and that I did the right thing.