Sorry mate...
I imagine you noticed I was joking in my other post... LOL
Why do I think that your question is funny? Well, at the time of the First Part and probably later for a while, MoonBox, made NO CHANGES to the assets. He used them as they came. Except maybe the characters. But scenarios and environments? Straight OOB.
That's actually why we got "Male" Molly.
So, the thought that he had made a "Special" License Plate with an hidden meaning for Nana's car, is, indeed, hilarious.
The MC's room in the first house, the asset comes with a suitcase placed awkwardly in the way... Well, that suitcase stood there for ages. There are other things like that... the consensus here is: Shouldn't be there? We didn't see it.
Because if we do see it and make a fuss, he doubles down or triples down on it... Now it's called: "Engine Repair Gag".
It's one of the quirks this VN has and can maintain, because of the short production time, allowing the Dev to be reactive to the community.
Peace