Kevin Miller doubted the cabbie's credibility because in order to talk to him you have to take a ride in his cab. The cabbie doesn't want to give up fares to talk to the media.
Shocking, ain't it?
Oh, I remember that now. Miller thought the cabby should talk to him instead of trying to make a living by charging his riders. Arrogant and disgusting attitude imo. My thanks for your answer, maggie.