A reasonable person knows the meanings of words. Hill may have perceived that he was being arrested. He soon found out that he was not arrested. He might also perceive that he is actually a cheetah, but he isn’t. In the end, it makes no difference. Reality is reality and mistaken perceptions are just that.
You, on the other hand, keep arguing he was arrested. He was not. I’m not sure why you’re trying to redefine words.