Contesting a texting while driving ticket?

Hello, I had been caught recently of "texting while driving" when I had actually not been doing the stated citation. I was switching music on Pandora app on a phone since I preferred using it as a music source rather than a radio. Unfortunately as I had no headphones with me at the time I had to result to using my hands. Fast forward to the incident. I ended up getting caught right after the stop light ahd turn green (at this point I already had returned the phone to the cupholder where it was originally placed), and was proceeded to be given a citation. The citation states that I appeared to be texting, when infact I was not. I have gathered the required documents to help my case (Call records, and Text/Web records), would there anything else be needed to at least contest the ticket?