Saying you don't know why you were pulled over is not the same as refusing to answer the question.
Refusing to answer would either include a statement of refusal or just being silent.
The response in my case was a plea of ignorance, so not a refusal to answer the question.
Did you mean to ask if I was implying rather than inferring?
I imply in what I say. You (or the officer) infer from what you heard me say.
To answer the question that I inferred from your question, yes. I did imply that ignorance of how you are driving is a state of unawareness. Regardless of the cause of unawareness, be it alchohol, texting, or just that you drive the same way every day and your mind wanders out of boredom, you are not giving your full attention to your driving, which then may be inferred by others to be reckless. I was not requiring that you agree with me, if you inferred that requirement from something I said, that is beyond my control.