Be prepared to let go of the bike!!!!!!!!!!!
I can not say that enough times. LET IT GO. The little side step that bull fighters use comes in handy.
Most people have the instinct of grabbing on for dear life. That's what gets them hurt. That bike will at best rip your arms out. At worst... break your spine. You're better off on the cars hood watching your bike bounce down the road.
Now lets just say the driver does stop just as you let the bike fall over, and you are mid Pirouette.
Not an issue... You will end up facing them dead on, and your next step is directly at them.
They are stuck behind your road block, and are prime candidates for a zombie snack.
Maybe you get a few buck for repairs, and a handful of brain matter. Better than thinking it will be just fine if I sit here holding on.
In my early twenties I saw a car I was drag racing, coming up behind me several blocks after the fact. It was an intersection of GunHill Road in the Bronx. The guy was all over the road, and still doing 60something. I KNEW he was gonna hit my car.
I stepped out the drivers door, and just as I did, he NAILED the rear end. I watched my car/his car come to a stop about 100 feet from where I was standing. I lit a smoke, and asked if everyone just saw that!
I imagine it is the exact same for a scoot.