As a reasonable non-law enforcement observer, to me it looked like the car was swerving uncontrollably after the first shot because she’d been knocked out and he kept firing. Whether that counts as incapacitated is a question of fact, not law, and I don’t have all the facts. No one does.
Which is what I keep trying to point out. The case law is a lot more complicated than Woman drives car towards LEO, LEO keeps shooting until he thinks he’s safe again, and since this is likely to end up as a civil case against DHS and nothing will come of it for him, the facts and specifics really matter and will determine what happens in the courts.