Sitting at the back of a line of stopped cars is also very dangerous. All those people texting, talking on the phone, eating, doing makeup, and so on make me nervous.
When traffic in front suddenly stops (people hard on the brakes to stop/ panic braking), there is no chance in hell that I am going to play it legal by stopping and have the person behind me pancake me to the car in front. I take the safe route on the shoulder or between cars. I can stop, the idiot behind me texting will NEVER stop in time.