Would it be okay to point out my professor’s misunderstanding? [migrated]

I am taking a public speaking class and it is a small class. There are under 20 of us. This is a communicatice class. Mt professor gave out instructions for us to make an ID card of ourselves( with our picture, hobbies, birthday, phone number and favorite 'insect') so that he can identify us. I did not post a picture on my ID card since I did not have a postable picture of myself. He sent me an email later on, and pointed out that I should follow instructions. I apologized for that and told him it won't happen again. After that, I checked the announcement he posted online and I saw that he was quite upset by some of us for not following instructions. Especially for not writing our favorite insect. There were five of us who did not write an insect including myself. On my defense, I did not realize that he expected us to actually write down our favorite 'insect'. Rather I assumed it was an example of a favorite something- I wrote my favorite song-since he himself wrote his favorite politician on his example ID card. I want to tell him that the instructions was unclear since five of us made the same mistake. I want to make it clear that I did not deliberately 'ignore' his instructions. I think that he is very strict with the rules he make for hw and for class, and that he seems to have his own way of doing things. If I send him an email about this incident, would he be offended or would he hate me? Should I wait until this incident comes up naturally next class? I don't want any trouble.