Yikes - that was too close for comfort.

It's said that dogs don't remember/know what they are being punished for, except when it is given at the time it happens. I don't know that I totally believe that or not. Maybe just be aloof toward her today, and restrict her when she is outside for a while to come. Also, go over some of those old commands, but if she listened to you when you said "go home", then she hasn't forgotten everything she learned.

I would be watching her like a hawk whenever she's outside now, until you're as certain as you can be, that she won't go off the beaten path again.

Koko - behave!!!! You scared the daylights out of Dad. No more of that nonsense - ya' hear??!!