If you check for the spacers yourself just turn the wheel's to the left (or the right) and you can reach the upper part of the spring with your hand. Should the dealership say they're removed, ask for them to put them in a bag for a keepsake.
Also, check the bottom edge of the side skirts and fascia's. Make sure there aren't any scratches under the car. I had a friend that bought a GT-R and then a day later realized the dealership had driven it up over a curb and made a mess of the belly pan.