When Pacey asks Joey to watch the Jeep, while he and Dawson go into the shop, he states he doesn't have the keys to restart the Jeep if he turns the engine off. After the party at Dawson's house, Pacey is shown shining a flashlight around checking for the lady killer. He jumps in his Jeep and starts the engine and the key is in plain view.
Right before Pacey tells Joey he can't turn the Jeep off, he already turned the Jeep off.
This is supposed to be episode 10, not 11.
A boom mic is very clearly reflected in Pacey's Jeep when Dawson and Joey are approaching the car for the shopping trip.