I don't know, I would think (hope!) they would have had enough sense to not be driving around anywhere with two firearms in the car that are easily seen. Of course, you never know with these 2 when it comes to "sense".Yeah the Daily Fail loves to sensationalize and has been particularly egregious several times in this case.
I've found this article to be one of the more detailed accounts from the constables:
https://www.cbc.ca/news/canada/manitoba/first-nation-constable-stopped-homicide-suspects-1.5230779
I've always found it interesting the detail that they drove through the checkpoint slowly before then stopping. I think they did that quite intentionally to buy themselves time in stowing away something. Obviously wouldn't have passed muster if the vehicle had been thoroughly checked, but I also suspect there would have been 2 more victims if the constables had insisted on checking the vehicle thoroughly.
Edited to add: This is a nice timeline of the case that also includes some info on the constable stop, including the note that Bryer in particular looked "paranoid."
BC teen fugitives found dead
Also, I wonder if the constable thought Bryer looked "paranoid" before finding out who they were. Or was this an opinion after the fact. Totally MOO!