Maybe that tank driver binge-watched "The Dukes of Hazard" episodes?
That supply convoy lost quite a few trucks. The supplies might have been largely salvaged, but some of those trucks are lost, and others eating up valuable repair facility time (mission kill).
As long as Russia stages invaders' attacks on Russian soil, uses Russian soil to base rocket, missile, and artillery attacks, and uses Russian air space to launch missiles and glide bombs, those areas' military targets are fair game. If Russia doesn't want military targets attacked in Russia, all they have to do is withdraw their invaders from ALL Ukrainian territory.