Ok, I guess I am looking at it from the way our nightime L/H runs at our barn are set up, nobody works the dock on the front side so you drive 4-5 hour's and then work the dock, then on your way back between the 7th and 8th hour you must take a 30 minute break off-duty, right?
Nothing to do with between the 7th and 8th hour. Basically you need to have 30 minutes off ANYWHERE BEFORE your 8th hour on duty. So you could take a lunch break at the FAC before you go back to your barn at the 5th or 6th hour if that is how it works out.
At least that's how I read it anyway.