The article does state that there could be potential legal consequences and a pathway for those affected by invocation of the act to pursue civil claims but most likely the consequences are political. 

Trudeau was likely going to lose the next election anyways so not sure this will cost him anything besides maybe a few people who were on the fence about him looking at him differently now. 

grayruby

news

Trudeau's use of the Emergencies Act was ruled unconstitutional

> a slap on the wrist two years later

It's not even that, though. There's no actual punishment, right? It's just a "Don't do that again." Over time that's valuable, but I'd favor inserting a constitutional review step prior to measures becoming law.