You're still not explaining why the officer would have any motive to lie at any time, regardless of the atmosphere. He didn't write you a ticket for the fun of it. He didn't pull you over for kicks. He pulled you over and wrote you a ticket because IN HIS BEST JUDGEMENT you were committing a traffic violation.
Can he be mistaken? Sure, that's what you're there to try and prove. But once again, YOU have a vested interested in proving him wrong. He gets paid the same whether you're successful or not. He has no motive to lie about it no matter what the attitude of the court. You, on the other hand, DO.
So when all other things are equal and neither of you has any "forensic evidence", why SHOULD the judge believe you?