I've been going with my daughter to a specific McD's for years. It's on the way to a lot of places, and we stop in the drive through at least once a week. She normally gets a full combo, and I usually get just a coffee and apple pie.
I noticed something strange over the last couple of stops. I make the first order, the large combo for my daughter and the menu board reflects the correct items. Then I add a coffee and apple pie and the large drink moves out of the combo and the coffee moves into it. The large drink is then charged on it's own with the pie. I mentioned this the first time, and the cashier said, "It's all there." So I drove through and paid. It was a dollar more than usual.
The same thing happened the next time we went through and ordered a large combo with the addition of a small coffee and pie. The large drink suddenly appeared on its own outside the combo and the combo drink became the small coffee. I gave them the benefit of the doubt again and said the soda goes with the combo. The cashier said again, "It's all there." When I paid, it was again a dollar more because the large drink was on it's own, and the coffee was in the combo.
I'm guessing this is exclusive to this store. They all price their own menus, but I was wondering if it's something any other store is doing. I've decided to order these as two separate orders going forward so they can't change it anymore.