I have never done anything by mistake.
Go first for Air, obtain sig.
Go back later for ground, obtain sig. Don't duplicate.
If they're able to discipline you for having late air for running ground, then they're MAKING you run air first, which will CLEARLY result in you returning to that address.
I've NEVER been disciplined for delivering ground and not duplicate stopping it, and I ran a mall route for YEARS.
Cue Dave's "cute" response: It's a good thing you went to feeders