Next thing you know, they're standing in front of the Tomb of the Unknown Soldier. "You're kidding me, right?" Dean asks. Why do these people not have conversations en route to their destinations? Like, did they all pile into the Impala and then talk about the weather or sports or the price of gas for however long it took to get to the cemetery? Yes, I know it's so they can save all the exposition for us, the viewers, but it's just damned weird. To continue the exposition, Sam points out that the Unknown Soldier is buried in Arlington. Garth informs them that this is the Confederate Tomb of the Unknown Soldier, because he's a Civil War reenactment buff along with all the other conveniently helpful things he is now. There's a military guard standing outside the tomb, but Garth assures the Winchesters that he'll be gone by dusk, even though the tomb was recently vandalized. Sam sighs. "Burn a Confederate soldier's bones in a town full of rednecks? Suuure!" Abundance of rebel flags aside, has anyone they've met seemed remotely like a redneck? Nobody's had even the vaguest, most generic "Southern" accent. Shut up, Sam.
The Winchesters leave, only to return later that same night. They could have cut out the last scene entirely. The tomb's not even locked, so the Winchesters and Garth just stroll right in. Sam notices the place looks pretty clean and, you know, not vandalized. Garth says the police found some beer cans and the top of the casket was off, but that was about it. Sam notices a bit of string on the floor. The three work together to open up the casket and discover that the corpse inside seems undisturbed. He's still got all his weapons and accoutrements, which makes them wonder why the vandals didn't take anything. Sam and Garth salt the bones and drizzle on some gasoline. "I kind of feel like we should say something," Garth says. Dean thinks for a moment, and then says, "We won!" Perhaps feelings still run deep in his old home town. With a smirk, he lights a match and drops it onto Johnny Reb.