How are Levandowski or Uber invoking the Fifth Amendment, then? Levandowski is not being asked by the government since this is a civl suit (unless the court counts as the government, per the flowchart?). And Uber is a corporation.
He's said he won't provide documents for the trial, at which point Google's lawyers would ask for a judge's order compelling him to do so. His lawyer says he won't provide them in that case either. They skipped the step of waiting for the actual order.