Simply advancing forward at a slow but steady pace is going to accomplish the task. No need to get overly aggressive; just proceed at a walking pace. They will either move or get moved. Doing some stupid teenager shit like dropping the clutch and going WOT is a great way to get into a nasty legal mess. No need to try and hurt the protester; put the decision in their hands and hope that self-preservation instinct kicks in. And get out of there before your vehicle gets surrounded.
I've seen my old man use oven spray to remove paint. I wouldn't want to use it near my own vehicle, except as a last resort. Also, have fun explaining that particular choice in front of a jury.
20-something white women are scary in a protest/riot situation. Just look at all the videos and mug shots from the past few weeks. The term "irrational" doesn't even begin to cover it.
Advancing at slow steady pace seems to be getting people shot. I think ,as lawyers[ ], we all know that should give people reason to fear for their safety, if stopped or forced to drive slowly by a mob.