

I mean I’m not even American and I know Miranda rights only need to be read to apply to interrogation AFTER being arrested. Typically by that point theyve already determined you’re drunk driving based on questions during the detention period.
refusing to comply with breath tests during a vehicle stop is against the law - I’m not aware of it violating any US rights, though again I’m not american. That’d be like refusing to stop when they tell you to


Chaterpedia is a great resource for us - the section 10 discussion explicitly discusses the legal situation of impaired driving.
https://justice.gc.ca/eng/csj-sjc/rfc-dlc/ccrf-ccdl/check/art10b.html