Forgot to log out of teacher’s computer

After I left the school today, I realized that I completely forgot to log out of the teachers computer. Another employee had to log in for me in the morning to set up slides. When I was finishing the note for the teacher in the afternoon, her TA came in the room and started moving things around and turned off her board. She said that she would be in the room until around 4 for a club. I hoped that maybe she would turn the computer off, but I’m not sure, and I feel bad for forgetting.