Day Off and Still On the Clock

I received countless text messages, emails, and phone calls today from work. All asking me where they could find something and how do they do the simplest tasks I have trained them on months ago. I'm sorry, I thought today was my day off. Well, not really. Still had to go to school and deal with the bullshit of them saying I didn't pass the WPE when they sent me an email back in January saying I did. Regardless, I was not suppose to be bothered by work. I am not on the clock, you did not give me a raise, and I am no on salary. So what would happen if I put in an extra hour on my time card for the questions I answered today. They would flip their shit that's what would happen. Ahhhh the joys of real life.