In 2007, the interior of the actual Mall at Steamtown would never have been as busy as depicted. The real mall was built in the mid 1990s, in the hopes of revitalizing the downtown. Two of the three anchor stores closed within the first five years of operation. At the time shown, the Steamtown Mall was a money losing ghost town with an uncertain future.
After Michael says to Toby "show us your penis!", Jim is covering his mouth to stop from laughing.
When Dwight is supposedly showing graphic photos to Michael, some of the photos are visible on camera, and they are not graphic in nature.
When Dwight puts the pin in the map, there is already a hole, possibly from previous takes.