Okay, I have no idea if the car I saw was actually Scott Pattersons..but it was a black Mercedes and I remember him talking about it in an interview once. And it was parked on the side (not he commissary side) of stage 18 (I think), it said Gilmore Girls, so I just assumed

Outside lorelais house in the sound stage there was also a sign that said "remembering chin chin" or something like that..But it was just off to the side..