What is the legal consequence of refusing to undergo a breathalyzer test (intoxilyzer / alcohotest) or blood test (alcoholemia) requested by Carabineros de Chile?

1. A minor administrative warning with no further action
2. It constitutes a serious crime punishable by fines, license suspension, and under Ley Emilia, mandatory prison sentences if associated with injury or death
3. The driver is free to go home immediately
4. The driver may choose to take an online questionnaire instead