Travelling @ 0 km/h

Apparently my speedometer gave up on me. Now I have no idea how fast it is I’m traveling. Dunno when will have time to fix it. Guess I’ll just have to drive slower relative to the other cars on the road. But what happens when there is no cars on the road to compare with ? ha ha… we’ll see if instinct can kick in. maybe i can use this as an excuse?