An employee working in Texas has an assigned route of donation boxes, that the employee is to check, service and empty. There is no fixed beginning or end time for the employee's shifts, and the employee only goes to the employer's premises at the end of shifts to drop off donations. The employer has a formula that it uses to estimate of how much time it should take to complete the route, based upon distance, number of donation boxes serviced, and the volume (by weight) of goods recovered from the donation boxes.
The employee has reported working forty hours a week to the employer, but the employer has only been paying the employee for 32 hours based upon its formula. What can the employee do to get fully compensated?

