I am not trying to lessen the importance of the notice, but this is a routine occurrence. When my son was in the Marines they issued these almost on a monthly basis at different times.
"Woe to you who make your neighbors drink, Who mix in your venom even to make them drunk so as to look on their nakedness! You will be filled with disgrace rather than honor. Now you yourself drink and expose your own nakedness." Habakkuk 2:15