The latest JLs were found at a somewhat dwindling grocery store that I don't often frequent. I decided to go a little out of my way on the trip home and check out another one to see if they had any more.
They had this lone Chevy panel, nothing more. There's one more store nearby, I'm going to check it out some time this week.
It's Fresh Market, so it's worth checking out if you have them in your area.
edit: I thought the stores where in the general rocky Mountain area, but apparently they're just in Utah.