> Pulling to the side when the traffic jam starts, not only when the firefighter walks up and knocks on the window. And get overtaken by other drivers :) Then

> Pulling to the side when the traffic jam starts, not only when the firefighter walks up and knocks on the window. And get overtaken by other drivers :) Then a lot of honking and swerving would be needed to get back in the correct lane. Also they sometimes need to back up a bit, to let a 'late' driver to move infront of them, or behind them, move to the other side, interpret what honking means to whom, etc... or drive forwards a bit, or whatever the firefighter knocking on the window tells them, speech recognition is still not perfect and interpreting abstract orders is even worse.