I would have called the proshop as soon as the group was a full hole behind.
If they decide to take a lunch break, I would just walk up and play the hole. You cannot hold your spot by leaving your bags at the tee box.
I like walking when I play, so that may contribute to playing better in general when I walk.
I will ride when they force me to ride (i.e., when the green fee includes the cart fee) or when all of the guys in my group ride.
I prefer walking when given a choice as it allows me to reset my thoughts between shots.
Sure, but that's not what I was saying at all.
It's my money, it's my club, and they are guests. I wouldn't hesitate the play thru a group that was that far out of time. I wouldn't try to sneak past them though, I'd advise them as to why we were already on the tee when they returned from the snack shack.
I wouldn't hold it against them for the rest of eternity. I'd just play through. I might even tell them to have a nice day as I drove off.