See what they actually have recorded and if they got your speed and violation on camera. Dash cam review, body cam review, and officers notes on citation will say a lot of what chance you have. Otherwise you have to hope the cop doesn’t show up to court and it gets dismissed. It’s happened for me and is more likely to happen with uhp than local town but they try to schedule everything on the same day for those guys so it doesn’t happen as much as it used to