What is the legal consequence of refusing to stop or comply when signaled by a uniformed traffic police officer (refus d'obtempérer)?

1. A severe criminal offense punishable by heavy financial fines, vehicle impoundment (mise en fourrière), and potential licence suspension or imprisonment
2. A minor administrative warning with no penalty
3. Drivers are only required to stop if they agree with the officer's reason
4. The officer must chase the vehicle on foot before any fine is legal