I bought a BMW that was supposed to get the new/shorter 36 month maintenance included. But the sticker was still referencing the 48 month plan. I didn't even notice.
BMW must have ran an audit, and know what they did? They honored the sticker and said something like "Your monro sticker was wrong and said you get 48 months maintenance, so you get 48 months maintenance"
I think this just goes back to how they are inexperienced and not a real dealer. I'd expect they'd lose any court battle surrounding it. It's the whole point of the sticker.