Career, life, football, dogs

I was placed on 30 attendence probation at work, I have completed two weeks of my probation. A few days after that Human Resources came out with a new policy that everyone had signed. Everytime we are abscent from work we need documentation. I don't go to the Doctors off everytime I get a sniffle, and I am not paid for sick days. Second, if we are late for work we need to provid documentation. I take the bus to work, if the bus is late how do you get documentation. I told my boss that the bus was late, she looked and said do you have documentation I said I can call the bus driver, I need documentation fro a court, Doctor or lawyer. What documenttation can one get if you are driving to work and there is an accident on the road, pull up to the office and have him wirte you a note.
Career
I was suspended for being late 3 minutes because the bus was late. I was suspended for two days. I am 39 years old and not in high school and if iam late due to uncontroable circumstances, I will not provide documentation. I have written my resignation letter, and am ready to quit. Should I quit, or shrug it off?? Not to mention, I do not like my job and I have way more experience than telemarketing.