Oh Moses! How terrible ! Mind you,on the way homewards ourselves ( A 30,M5,M4) we saw LOADS of people on the hard shoulder ,with their bonnets up & waiting for the AA / RAC whatever----hadn't checked their coolant level, do you think ??( it WAS very hot,mind you !).We are usually OK,as I check everything on Karen's car,even if we're only going to ASDA !!( paranoid,you see).