I didn't read the OP nor am I a traffic lawyer but I have watched the occasional legal drama so I feel qualified to offer an opinion here.
Really it's less about the content of your argument and more about the manner in which it's delivered. Wear a suit, that's an obvious sign of success. Casually drop that you moved back several "red team" meetings to squeeze in time for the judge, this will make him feel valued. Point out that it looks like he's lost a little weight.
Make sure during your opening argument to repeatedly gesture towards the low-ranking police officer who pulled you over, take special care to point out his youth and inexperience. If you have any compromising photos of the officer at a something like a donkey show or Nickleback concert, now would a be a good time enter them as evidence of his immaturity or poor music taste. The occasional "Objection! Hearsay!" is a good way to keep the officer nervous and on his heels.
If the judge is wearing a wedding band, make sure to compliment his wife's cooking or choice of window treatments. If he has a particularly masculine mustache, indicate that you're planning to grow a similar one.
Always present your speed's unit of measurement in metric, this bit of subterfuge could add a layer of uncertainty to the officer's testimony. If he contends the speed was recorded in miles per hour, this is a good time to give a dismissive hand gesture and offer the documented precedent that inexperienced radar gun operators are prone to calibrate complex electronic devices incorrectly. Demand the officer's cellphone or personal computer be cross examined, if he has icons just plastered all over his desktop this can be a clear sign of his lack of organization with respect to job tools.
Remember, you're there to "resolve this matter amicably" - not "fight a ticket." The occasional wink and finger pistol softens up even the most curmudgeonly magistrate. Keep offering platitudes about his wisdom and experience with such obvious cases of "gross incompetence and possibly racism..." Let that last word hang ominously, most legal bodies want to shy away from the possibility of unwanted attention from civil rights commissions.
This will probably serve you pretty well, be sure to thank me after your hearing.