Police Officers are not suppose to give bogus tickets. Was this citation given to you due to some personal problem between the officer and you? If not, I would suggest that either you were not aware of your violation or the officer made a mistake. Either way, there is no legal requirement for the officer to show you the radar gun, and I'm not sure what you seeing the radar would accomplish.
Many officers are trained to clock a vehicle all of the way past them so they can hear the doppler audio on the radar to ensure that they are clocking the right vehicle. Most of the time when this is done there is no speed locked on the radar computer read out. If the officer is being dishonest, then he/she could just leave a high speed from another vehicle displayed on the readout which would do you no good either. If the officer doesn't have a personal vendetta against you, I don't think this would happen, and if he did have a previous problem with you, then he would be a fool to cite you and take a chance on having the case go to court.
Also, I'm not sure what your comment "suppost to be be good and use the word "ministry" at their academy" means. I'm an academy graduate and have taught at our state academy and have never really heard this term used in association with anything other than the Chaplain position. If you feel that you received a ticket that you didn't deserve, you should take the officer to court.
19 years law enforcement