Long story short, I had a family medical emergency with my mother and it occurred late at night at about 1 am. She is fine but she needed emergency surgery. I checked my work calendar and informed my manager at 2 am via text message that I would be working from home so I can stay with her and work from my laptop.
I had no meetings, no lab work, and no reason to be in office.
He didn't respond, but he sent an email at 9:55am and said I had an unprofessional attitude for telling him I was going to WFH because I didn't request it previously and get his approval and if I WFH I needed to tell him exactly what I am going to accomplish.
I sent him in response that my mother and I were in the emergency room, that I had no work that required me to be in office and I sent a list of the normal things I do in office on Mondays but just not sitting in the office with him.
He hasn't said sorry or anything to me since. I am back in office today since my mom is just recovering and she will be released in a day or 2. He barely said anything to me.
Am I unprofessional for letting him know?