Doesn't anyone read the contract anymore?
You only get paid because they pay you using your accrued paid leave, vacations, option days, etc. Once you have used up all these days, you no longer get paid for any FMLA days taken. You do get to keep up to 2 weeks that they cannot force you to take under FMLA.
NATIONAL MASTER UNITED PARCEL SERVICE AGREEMENT
ARTICLE 16. LEAVE OF ABSENCE
Section 6. Family and Medical Leave Act (FMLA)
The Employer may require the employee to substitute accrued paid vacation or other paid leave for part of the 12/6 week leave period.
Employees shall be allowed to retain up to two (2) weeks of accrued paid vacation that will not be substituted for part of the 12/6 week leave period.