Thank you all!
He had his Traditional Requiem Mass and burial this morning.
I have a moral certainty that he has been saved (even if he's still in Purgatory). It's a great gift from God and Our Lady, the Scapular and the First Fridays/Saturdays.
I have made sure that all my children have made the First Saturdays shortly after First Communion (well, the ones who have received First Communion so far). No matter how badly I might fail as a parent or how far they may wander in life, at least I know that Our Lady will make sure they're saved in the end.