Nick, They probably marked you as DSQ (disqualified) because you left early. (missed work assignment)
If you miss a cone or gate on the course, they mark it DNF (did not finish)
You had fun and that's all that matters... next time you will do better, i'm sure.
BTW, next event is OCT 10th. Happens to be the same day as the New England Dragway meet. I'm going autocrossing.. the last points meet.