Incredibly difficult without co-operation from drivers, say those in the field

“Heavy-duty towing experts say it will be difficult or impossible to remove the hundreds of heavy trucks entrenched in Ottawa’s downtown — unless the drivers allow it.

“If you know anything about truck air brakes, once you pull that button, all 18 wheels are locked,” Crowe told CBC on Wednesday.

“Nothing can move it, except maybe a big wrecker. And no wrecker worth his salt is going to come anywhere near this, because they’re on our side.”

https://www.cbc.ca/news/canada/ottawa/ottawa-protest-truck-tow-remove-1.6339652