Oil Change Directions

My Son Works At A Dearlership. They Got A 2005 Doge Truck Hemi. Took The Drain Plug Offand No Oil. Took The Filter Off, No Oil. 30,000. The Guy Told Them He Never Had The Oil Changed. No Light Came On , No Codes. Could Find No Leaks. They Put Two Quarts Of Tranny Fluid Drove Around The Lot And Put Oil In It Runs Fine. Too Scared To Sell On Lot So They Took It To The Auction To Get Rid Of It.