Food Addiction Support Group
An individual suffering from a food addiction disorder frequently experiences episodes of uncontrolled eating, or binging, during which they may feel frenzied or out of control. They will eat much more quickly than is normal, and continue to eat even past the point of being uncomfortably full. Binging in this way is generally followed by a period of intense guilt feelings...
have you tried writing a journal of what you eat and how you are feeling at the time and that way you can recognise a pattern.
For the record I have unwrapped chocolate while driving lots of times. lots of people eat while driving which is why they have drive thrus.