Wow !! You got good eyes....This is going to sound really dumb, but trust me
He must have his phone in selfie mode for all the parts he's got his mug in it... and it's reversing the image. You can see at 1:08 really briefly that the steering wheel appears to be on the passenger side (video in selfie mode). Then you can see at 1:24 that the fuel cap is missing on the passenger side (not in selfie mode). Also you can see at 2:16 that the RAM badge on the tailgate is backward (selfie mode). Also explains why when he's sitting in the back seat (selfie mode) and it looks like he's on the passenger side, but flips the video around (not selfie mode) and it looks like he was actually sitting on the driver's side.