When we drive past a car on the side of the road, we can mark if it's there or not. What if, the person who's stopped, doesn't know who to change a tire or needs alittle bit of coolant to get going?

If it doesn't merit calling a towtruck, they could signal that specific thing on waze. Anyone can pull over and offer assistance, but what if you knew exactly what the problem is and how to help them? You'd be much more likely to stop to help