I've witnessed more than a few vehicles overheating in slow moving traffic. Many of drivers of these use the shoulder as a way of removing their vehicle from t

I've witnessed more than a few vehicles overheating in slow moving traffic. Many of drivers of these use the shoulder as a way of removing their vehicle from the main corridor. Another primary use for the shoulder is emergency vehicles. Any vehicle on the shoulder, moving or not, is likely to slow emergency responders. Make sure to look before you swerve, as many a highway patrol person has been killed this way.