I think the liberal states got rid of it earlier than the conservative states. So New York was probably an earlier state to get rid of it. And the earlier bans might not have applied to parochial schools.
I recall living in a liberal state that outlawed smoking in restaurants pretty early. It was so surprising when I visited my parents in a moderate state that smoking was still allowed in restaurants. But when my parents’ state eventually did get rid of smoking in restaurants they completely got rid of it: including in bars.
The liberal state had always had a carve-out for bars.
So then for a while the moderate state didn’t allow smoking in bars but the liberal state did.