coolmom42 wrote:
"Open" does not mean un-sealed. It means a container with no lid in place, as in someone is actively drinking from it. A partially used bottle with a stopper or cap is not "open."
Not true at least in California. An open container is any bottle or container that has been opened or had seal broken.
California vehicle code
23222. (a) No person shall have in his or her possession on his or
her person, while driving a motor vehicle upon a highway or on lands,
as described in subdivision (b) of Section 23220, any bottle, can,
or other receptacle, containing any alcoholic beverage which has been
opened, or a seal broken, or the contents of which have been
partially removed.