My daughter was involved in an accident on the M4 yesterday (no-one hurt, car written off), and was left waiting by the AA, on the hard shoulder with her passengers, for 6 hours.
During that time a driver stopped, put on a hi-vis jacket, and came to check they were ok. Said he was a mountain rescue person, and asked good questions about the broken windscreen and people's heads.
If you're reading, thank you so much!