I had mine delivered at home luckily it was on a trailer with 4 miles on the clock it did have some marks on the mat drivers side and some marks on the plastics where feet had been on it - sadly like you it drives me nuts, but in reality they wont then follow it up with a wipe down as much as it annoys me it its not being realistic.
I had my octavia a few years back delivered by someone driving it and it was fine, my experience thus far has been ok regards delivery...except mine was the wrong colour, but that's another story