A few years ago someone drew a penis on my car tailgate, but being winter and dark and not walked around the back, I only realised after 3 days and wondered why people were looking at me with a smile. I thought people were being friendly!
I didn't wash the car almost everyday for an aesthetic reason. I washed the car because the car was in need of wash for a mechanical reason (i.e. uneven deposit of snow/dirt/mud/ice on the inner barrels of the rims make the car to vibrate and wobble pretty hard). I also had to clean the headlights manually, pretty much once in every hour after the sunset, just to see the roads ahead of me. And that's the reason why the headlights in photo #1 is relatively cleaner than the headlights in photo #3.
I don't live in Russia, so I have to guess as well. But from what I've seen, the Eastern part of Russia usually do not get much snow. They do get snow very frequently but they're almost always very light snow. So it's almost like a desert area but very cold. And the snow falled onto the roads do not usually stay there (nor cover the road). So even though they don't do much of snow plowing, the roads are usually free from snow, like this. (EDIT - removed the photo)
However, as you approach to the Western part of Russia, which has a relatively warmer and snowy climate, you'll start to see some snow on the roads. (EDIT - removed the photo)
They're still not very snowy (compare to cities like Sapporo, Japan) but since there are enough snow, I guess they need to implement some sort of snow removal measures. And in some regions, they do this by spraying dirt (or the mixture of dirt and salt/calcium chloride) on the snow. So your car will become incredibly dirty (completely covered with mud-like substance), if you pass those regions.