Just to add a counterpoint to this, I remember reading on here that someone had used the McDs app to order and pay for food in advance so when they got to the drive thru window it was less hassle to give them the food than to try and refund the payment.
When ordering with the app, most McD's with a drive thru have converted to Click & Serve, you get assigned a numbered parking bay and they bring it to you. I've only used it once and the food came out without comment, I suspect they're no keener on you doing that than riding through, OTOH it ought to be harder for them to object.
Back on topic - What new McDonalds? I don't think the one proposed on Station Rd (Old Aldi site) has been granted planning permission yet, though it's been dragging on for over a year. Or is there another one?