Okay, here is the thing:
The white box phones are new, returned, and refurbished phones. Depending on the stock. New phones that are just out, obviously don't have enough returns to be refurbished so they are commonly "new" or returned phones from customers who did not like it. Its basically a gamble. The reason they are in the white box is because everything you get with your phone is covered under a kind of warranty: The phone, the battery back, the battery, and the charger. They will open a new phone, and piece out what needs to go to who- so no you would never (should never) get a new Droid box with everything in it, because those parts are going to other people with those defective parts.
What I would do if call 1-866-406-5154 and speak with them, if THEY are still telling you the same thing then I would go back to the store that it happened in and have them call. Because your device is covered under a 1 year manufacture warranty and yes that does include the keyboard- the reason I say have the store call is because they know (and witnessed) that it was not your fault and was a problem with the phone.
What you're going to have to do is send back your old droid in their box, within seven days, or they'll charge you for the device. What these guys are saying about being threatened charges for damages to the device should be described to Handset Replacement as "normal wear and tear" which, it is. As long as you don't have water damage you should be okay.
If nothing else, I would look for a direct phone number to call Motorola, which I may be able to find if you're still having this problem in the next few days.