They kind of have a point about blocking roads being ineffective, but for entirely the wrong reason. Having been stuck in traffic caused by protests blocking streets several times myself, I know that for most of the drivers, it’s utterly indistinguishable from all the other traffic jams. Unless you’re right up front to see what’s causing it, it could very well just be another event at the fairgrounds, or one of the regularly-scheduled crashes.

Put another way, maybe driving is actually a protest against cars? It is pretty damn effective at blocking streets.