Dude it is easily understood that drinking reduces executive functioning which by definition is your ability to contemplate alternative outcomes and makes you choose economically poor ones, so by definition they are very unlikely to think "I shouldn't drive" it reduces your ability to contemplate those outcomes. You are assuming some neurologically stable state that is not distributed evenly.

But if they took an uber there, they do not have the option to drink and drive either way. See Russell Barkley's last book for EF I can spam quotes if needed.