You know they will. They can’t help the old “That isn’t how we did it in Cali.” line. It’s kinda been instilled in them for so long. So, just don’t come here.
That's fixable but nobody has the stomach for what it takes to fix it: the first time somebody uses that line in a meeting where some issue is being addressed, the natives fall upon that person with great resolve to persuade them forcefully that nobody cares about "how Cali did it." Word will get around...