Here's what they did. So, I bought the seats from someone who was selling them and didn't really use them. I purchased the seat unit plus the screw and bracket that anchors them under the well in the trunk. The service center had to install the clips that go into the back of the 2nd row seats and the trunk. They mistakenly failed to install the button that occupants of the 3rd row can press to open the trunk. That is scheduled for next week. Since they stopped reinforcing all cars somewhere around the 5,500 VIN, the service center only had to visually inspect that the rear cross member reinforcement was present. The install took a day and ran me about $1k.