The comment below was written by the accused (not living in the U.S.):

“On 28 April 2006, I was charged with obstruction (Section 444 PPRA2000) for holding a sign that reads “Police speed trap ahead”. I entered a plea of not guilty and the prosecution withdrew the date before the trial – presumably for fear of setting precedent. Just before withdrawing, the prosecution also offered a “guilty with no conviction” bargain, which I declined.

This activity is *not* illegal if you know how to execute it properly and within the law. I intend to provide this education after seeking further collaboration with law experts.”