Buddy's about to become the traffic jam.

Yea it's sorta dumb in hindsight but In a panic I get it. A smaller sedan in neutral can be pushed by hand so he probably panicked and tried the same lul.

I’m guessing they’re probably familiar with large trucks so they knew what had to be done.

I know almost nothing about large trucks, but would assume I could just mash the brake pedal (probably with my hands because its faster than trying to climb into the occupied seat), and bring the truck to a stop. That would buy enough time for someone with large truck knowledge to secure it properly.

It depends. My fiancee has it and it's been under control for years and she takes medication daily for it. Iirc in our state if you haven't had a seasure in 2 years you can get your drivers license.

The version she has isn't the movie kind either, she's fully conscious and relatively in control while it happens. She would have time to break and chuck it in park before it gets to the point her body doesn't cooperate and even then she can still speak and talk people through helping her, assuming she's not with me or family who knows what to do. She carries a special suppository gel that'll stop it. Imagine a smaller prefilled turkey baster, or bigger lube injector.