Take the day off work
Remember, on the exam you are being tested on the standards relating to the entire practice of Human Resources. In scenario questions, and elsewhere on the exam, you are not being asked how you, personally, would solve the problem. For the four hours of the exam, you need to think like a member of the HR community, recognizing that your personal preferences or the policies of the business where you work may lead you to incorrect responses.
So, go ahead. Take the day off work.
You deserve it.