Basically Ottawa police were insubordinate, sided with the truckers/occupiers/protesters, etc. The populist conservative provincial government completely failed to act, likely due to the protestors being on "their side".

> Ottawa was not being policed. Ticketing didn’t start for days. Tow-truck companies hesitated to move illegally parked trucks for fear of losing business from truckers after the protests ended. Protesters were refilling their trucks with jerry cans of diesel. When the police were ordered to put a stop to that, protesters began to carry empty jerry cans en masse to overwhelm law enforcement, but they needn’t have bothered: front-line officers were not following orders to stop them from gassing up. There were reports that sympathetic officers were sharing police intelligence with protesters. Anything the police did could backfire. Families with children were living in some of the trucks, and there were reports of firearms in others.

https://thewalrus.ca/freedom-convoy-the-prince/