Burger King

I ordered a double Whopper this morning at the drive thru! I drove up to the pickup window to pay & get my food! When I was done paying, the young lady at the drive thru window asked me to back my car up a little, away from the window! I asked her why she wanted me to back up completely away from the window! I thought she was asking me to park at first while they were fixing my food, so I wouldn't block any other customers who drove up! No, she just wanted me to back my car up a little, so I couldn't see what they were doing in the restaurant! My guess is, that they handed me a burger already made, instead of making me a fresh burger! Now that is just my guess! I don't know what other motive she could have other than that! But I do suspect whatever it was, she wanted me to back up so I couldn't see what they were doing inside! And if that is the case, they must have been doing something there at the time that they didn't want a Customer to witness! This is the first time this has ever happened to me at a drive thru! I hope you guys have cameras at this specific store so you can find out what they were trying to hide from me as a Customer!
I have included a picture of my Receipt, to prove I was a Customer there at the drive thru this morning!