I've never tried going that far, but once a cop looked offended when I said he couldn't search my car, like I had impugned his honor, so I volunteered the expla

I've never tried going that far, but once a cop looked offended when I said he couldn't search my car, like I had impugned his honor, so I volunteered the explaination 'It's nothing personal, just a matter of principle." That seemed to satisfy him.