Out of curiosity, how do they determine the fine for people without a salary (students, retirees, self-employed, disabled, otherwise out of work, etc.)? Social safety net amount? Fixed minimum?
There is a minimum, it starts at ~$700 for 0.02 BAC. It is also possible to use less than a month salary for people with low income and/or high degree debt due to children etc. The intention of the law is that everyone faces meaningful penalties.