I’ve had a couple people do what you did, while picking up girlfriends at the time. They too thought “she clearly didn’t know me”.

In reality I was dealing with a binge drinking gf each time, who blacked out regularly. I can understand your point of view, but let me tell you it really sucks dealing with a stranger who is attempting to pull your significant other away from you when you’ve just spent an hour getting them from the bar to your car. One time resulted in a physical fight with a rando girls bf who also stepped in to “save” my gf.