We've come to learn that anything goes in Russia, even a tank crossing a civilian highway.
Imagine this: you're driving in Russia on a snow-covered highway. The roads are clear and the sun is out. So you think to yourself, "What could possibly go wrong? Today won't be anything like any of those other crazy dashcam videos I've seen online countless times." And then it happens. A tank suddenly comes out of nowhere and crosses the highway like it's no big deal. And then suddenly it's gone, having simply driven off into the snow. This is Russia, after all. Things like this seem to happen quite often.
No one appeared to get hurt due to the tank's sudden appearance. Then again, it didn't look like it was about to stop for anyone even if they were in the way.