Truth is, none of us know what the circumstances turned out to be. Were you right to call the police, sure.
Do we know the parents were inside doing shots or shooting smack, NO! We don't. Probably shouldn't be putting spins on things we don't know the whole story on. My Father owned a bar, I spent time in as a child. That was a LOOOONG time ago. Times have changed.
Still, we don't know all the facts.