After Georgie tags along on Jim’s annual trip to a tire convention, he learns it isn’t what Jim claims it to be. Meanwhile, Mandy’s doubts about her parents’ relationship make her question her marriage to Georgie.
Title Reference: “A Tire Convention” refers to the cover story for Jim and Georgie’s trip to New Orleans, while “the Moral High Ground” refers to Audrey’s choice to remain silent about the lie.
While talking to Mandy about one day taking over her dad's tire store, Georgie mentions his dream of being the "tire king of Texas". The Big Bang Theory episode "The Sibling Realignment" establishes that Georgie owns a chain of tire stores across Texas.
Georgie: You'll be okay with CeeCee while I'm gone? Mandy: Of course. Audrey: Plus, Grandma's here. Connor: And I can always lend a hand. Jim: Have you ever even held a baby? Connor: I've held an accordion. How different can it be? Jim: You don't squeeze a baby. Connor: Got it.
Jim: Listen, this weekend's happening. You might as well have fun. Georgie: Can I even get into a casino? I ain't 21. Jim: Oh, you're telling me Georgie Cooper don't have a fake ID? Georgie: You're starting to get on my nerves. Jim: [laughs] That's what I thought.
Georgie: I can't wait to meet the Hankook tire guys. Jim: Mm-hmm. Georgie: I learned how to say "hi" in Korean. Annyeong. Jim: How'd you learn that? Georgie: Called Sheldon. He also taught me, hwajangsil-eun eodie. Jim: What's that mean? Georgie: Where's the bathroom? Jim: Why does your brother know Korean? Georgie: Why does he know Klingon? I've learned not to ask.
Georgie: It's kind of exciting, your dad talking about me taking over the store someday. Mandy: Mm-hmm. You're gonna be the tire king of Medford. Georgie: Forget Medford. I'm gonna be the tire king of Texas. Mandy: And does the tire king of Texas still live with my parents? Georgie: Hell no. He's got a giant house. Mandy: Ooh. I like that. Georgie: Oh, and a big old pool in the shape of a tire. Mandy: So a circle. Georgie: Well... yeah.
Audrey: Before you leave, would you take a look at the toilet in our bathroom? Jim: Oh, you just have to jiggle the handle. Audrey: I prefer not to jiggle, Jim.