If you drink at a bar, and then go to your truck to sleep, it can be illegal.
1. If you start the truck.
2. In some states if the key is in the ignition.
3. In other states if you are in the vehicle and keys are in your possession.
I am not saying I have not done this, but knowing it is illegal, I will never openly load alcohol into the truck, always as part of a larger grocery purchase, where the alcohol is in a bag, out of view of LEO’s other drivers or the public.
That being said, I dont sit on the road anymore, so I dont mix my alcohol with driving….
I also start drinking at noon on my days off to keep the boss from the ability to call me in…