My station managers are saying that if you call off on a Friday or Monday you need a doctor's note

[Maui]

You gonna show us the law you say bars FedEx from requiring documentation or are you just gonna keep telling us why you don't think they can?

Also
San Siego http://docs.sandiego.gov/council_reso_ordinance/rao2014/O-20390.pdf
Oakland http://www.oaklandcityattorney.org/PDFS/Guides and FAQs/Revised Measure FF FAQ Feb 2015.pdf
For CA state law, just as the text of the AZ law does not explicitly state that doctor's notes can not be required, it can be viewed as retaliation and the CA Department of Industrial Relations has issued guidance in this webinar: Paid Sick Leave webinar
Employers cannot interfere with the use of accrued sick time required by state or local law and requiring a doctor's note for less than 3 days is regarded as unlawful interference/retaliation.