Yes, show it towards reimbursed expenses.

You'll enter your mileage and other expenses first:

1.  Click Federal on the left-hand side menu.

2.  Click Deductions & Credits across the top.

3.  Scroll down to Employment Expenses and click Show more.

4.  Click Start or Revisit by Job Expenses for W-2 Income.

Go through the entire section entering your numbers till you get to the two screens below, and enter reimbursements.