They wouldn't realistically get into the car (they didn't), but if they did, they'd trash the interior too. If the driver got out to fight, they'd beat him up obviously. If he just got out to "clear things up", they'd insult him and maybe slap him around a bit.

The driver's problem is he's in his own little bubble and was infuriated by bicyclists inconveniencing his drive (oh dear). I bet he'll tell people how scary NYC is, like commenter `goldenkey` above, and hopefully won't return to be so inconvenienced by kids on bicycles. His conundrum was 100% avoidable by not being a tool.

Anyway I hate selectively edited videos like that, making the driver look like some victim. It's Andy Ngo-quality material.