Yes you are
"im trying to get home and these protesters have inconvenienced me. i am the judge, jury, and executioner and will inflict serious injury or death for this misdoing"
If I'm trying to get home and a bunch of protesters of any kind get in my way after I beep my horn and do such and such, I'm just going go through
Slowly, of course, but with conviction
If you can find a way around that's safe you should do that. Beyond that though I guess I could understanding stopping like 20 feet in front of them and going like 2mph towards them, they would definitely back off and even if they didn't they wouldn't really get hurt. I wouldn't call what you're talking about here "hitting them with your car" though.