It could have been a lot worse.

Ah I won’t kiss and tell ;)

This happened to me not so long ago, with the leader of a major political party.

There’s a difference between ‘too drunk to drive’ and ‘too drunk to get served’. We don’t know that the bartender was overserving them. Sure seven Margaritas is a lot, but consumed over a period of time they wouldn’t necessarily be drunk enough to refuse service.
Getting behind the wheel is another matter entirely.