FWIW. I’ve seen some interesting theories that the coward couldn’t have escaped in that fashion, and/or was nowhere near the vehicle.
A search just now turned up a couple scenarios, not sure I like all the details, I just don’t like to believe accepted narratives without question.
Here’s one that I think treats Tedd too kindly.
https://www.crikey.com.au/2009/08/27/teddy-kennedy-and-chappaquiddick-the-true-story/
This one doesn’t sound very likely:
https://people.com/politics/ted-kennedy-chappaquiddick-car-accident-50-years-later/
I have a newspaper from this week 50 years ago somewhere that literally has Tedd’s story below the fold from Apollo 11.
You think Ted Kennedy was worried about some beat cop on the Cape? What a bunch of crap.