The German-origin thing seemed a little too obvious, but I suspect I was looking too hard for something deeper …

I kinda assumed it was a joke about the green VW bug that keeps showing up during the famous Bullitt car chase. Only ref I could think of

Thanks for checking! Haven't had a chance to rewatch, but it didn't occur to me until the show was over.

Not positive about every shot, but every significant scene after the "rule of thirds" comment was shot in a non-thirds framing. (Jimmy and Mike in the restaurant, Mike and Gus in the parking lot, the disposition)

Kettle Chips has been making Caesar chips (the Bloody Mary-like drink, not the salad) for the past few months. Hard to find here in Victoria, BC, but worth it when you do. And they also leave you with the red-tinged fingers of shame.