A car/driver could use some help in 300m
So many times we see car on the roads, specifically the highway, but we are navigating to fast to stop last minute to help them out. Although many of us would be glad to help out, we just can't stop as we saw them too late. If there was a way people in need could put in a request (sometimes, just not being alone, panicking is already a big help - having an extra fluo jacket, need of water, lift to closest gas station if in the middle of nowhere etc.) that would send an alert "a car is pulled over in 300m and needs help" (probably other wording, maybe more specific would be best), and drivers could prepare themselves to accept (resolve the alert) and pull over on a high speed road or in road in the middle of nowhere - could be a good idea!
Russell Darroch commented
Could be misused by criminals like