Can a manager permit a hybrid employee to work 5 on-site split days a week?

Yes, a manager could permit an employee with a hybrid PWL to work 5 split days on-site a week i.e., an employee could work on-site each morning at Brown and then during the afternoon the employee could be permitted, subject to advance manager approval, to work remotely for the remaining part of the workday. In this example, a non-exempt employee would not be eligible for travel time pay to and from work as this schedule would be considered to be part of the employee's regular scheduled shift.