In all of the drive thru's I've seen for the last few years, they've pretty much made it where you can't do that any longer.Elves are naturally mischievous it's trait we're often not proud of at times .When McDonalds first introduced drive up's I'd order a big Mac ,fries and a cheeseburger than get out of line and watch the total confusion.
Well, you could if you're driving a 4x4 monster truck; those 8" curbs are kinda hard for a car to drive over.