Sources tell TMZ … production crews returned to the Atlantic City pad Wednesday, dimming the lights and removing the cameras from the house. Our sources tell us that it only took the production crew 4 hours to pull it all off. We’re told producers were also seen taking down no-parking and permit signs dating from early July to August 6 … and the cases were loaded with equipment behind the house. Two security guards were stationed outside the house as producers and crews moved quickly to pack up. Our sources say that even the house next door, where the show’s producers had been stolen from, was seen being picked up and cleaned. We broke down the story … earlier this week MTV’s newest project was abruptly halted less than a week after it began pre-production. A source told us that production details were being worked out while MTV would only say that production had “ceased.”