So I just jumped over to Instapundit to see what he had to say about it. This jumped out at me:

I’ve always been a supporter of free speech and peaceful protest. I fully support people protesting police actions, and I’ve been writing in support of greater accountability for police for years.

But riots aren’t peaceful protest. And blocking interstates and trapping people in their cars is not peaceful protest — it’s threatening and dangerous, especially against the background of people rioting, cops being injured, civilian-on-civilian shootings, and so on. I wouldn’t actually aim for people blocking the road, but I wouldn’t stop because I’d fear for my safety, as I think any reasonable person would.

“Run them down” perhaps didn’t capture this fully, but it’s Twitter, where character limits stand in the way of nuance.

You’d think that someone who became a law professor would maybe realize that before pushing send. In the immortal words of Herm Edwards: DON’T PRESS SEND.