The only time I was ever asked if I had a vehicle, was when I started flagging years ago because you got called far more often if you could carry equipment. Now that I no longer do that sort of work, it doesn't matter. Now that I work for a certain rail tor company, I have the option of riding my bike and a few of the carmen and one of the Provisioning crew do (till he had regular access to a car or got a ride) commute by bike.