Doctors advise people in Trudeau's situation (being exposed to covid) to avoid high risk settings, like being confronted by truckers.

From the article:

It’s a weird thing to do at this stage of the pandemic , given that many health authorities are now explicitly telling Canadians not to bother isolating if they’re asymptomatic. With Omicron spreading so widely, epidemiologists are generally working from the premise that almost everyone has been exposed to COVID-19 at some point, and to take precautions only in special circumstances. Ontario’s official public health guidelines advise people in Trudeau’s situation to continue living their lives, but to avoid “high-risk settings” such as confronting truckers. Trudeau claims he is following the guidelines of Ottawa Health, but the health authority’s public guidelines only advise a five day isolation period in the case that someone is unvaccinated. Not only is Trudeau thrice-vaccinated, but a rapid test that he took after the alleged exposure turned up negative.