I think I found the answer to your questions. Evidently, upon delivery to the dealer, there are 6 rubber plugs in the glove box, which are called body plugs. They are to fit in certain holes in the undercarrage, during the dealer's vehicle preparation.
Here is the web site with the details. Scroll down to the part about the body plugs. Sounds like your dealer did not read the directions. Should be a simple fix.