Drank Friday night - I would estimate that I was back to 0 BAC around noon on Saturday. I have an EtG test this afternoon at 5:00 PM. Puts it right above 72 hours. Think I'm good?

Possible but BAC has no relation to ETG. What happens when it is 24 hours? Worth the fun?

You still might fail... why worry now. You wasn't worried when you was drinking.