Carrying Booze in Your Car
Once again, this surely doesn’t apply to you, but it’s best that you know anyway, for research purposes.
It is absolutely verboten to have any opened containers of alcohol in your car, and clearly it is illegal for you to be drinking any of it. All alcohol must be full, sealed, and unopened, and it must remain that way until you arrive at that sophisticated dinner party full of responsible adults you’re going to.
If you are transporting a bottle of alcohol that has been previously opened but is now capped (and not being enjoyed in the backseat, hopefully), that alcohol should be in the trunk. If you do not have a trunk, the alcohol should be in the compartment or space that is LEAST accessible to the driver.
This rule does not apply to anyone in a chartered bus, taxi, or limousine for hire, provided the driver does not have any alcohol in the driving area.