I too have had a bad experience with Carmel Law Enforcement. It was a sheriff's deputy who pulled me over and said I was driving like a bat out of hell and switching lanes all over the place. It was night and he was obviously looking for intoxicated drivers. I badged him to let him know that was not me. He was offended. Things then went down hill. Long story short, my driving like a bat out of hell was accelerating quickly without spinning my tires or exceeding the posted speed limit. My switching lanes all over the place was one lane switch "from the right side of the right lane to the left side of the middle lane" and never crossing any other lane markers. I did not receive a ticket.
I guess the moral is that there are always some overzealous officers out there. In this case, I would start with a letter to the Chief of Police. I would also contest the ticket with the help of an attorney.
You specifically stated Sheriff's Deputy. I'm curious as to why since, there is no such thing as a Camel Sheriff's Deputy. I've seen people confuse calling Sheriff's officers, but not the other way around.