Drinking alcohol while driving is outlawed in 49 out of 50 states, except Mississippi, the home of the blues. However, you must remain under the legal limit.
Despite pressure from the federal government to outlaw all open alcohol in cars, 11 states allow it. In Arkansas and West Virginia, passengers can possess an open container but can’t drink from it.
I’ve heard that some states have a law that you have to have at least one more occupant in the car than there are open containers.