Oops, I wasn't really doing the math as I went
Originally I was adding up to your 10x + a adding in bunch extra for flock, but somepoint my brain switch that 10x to 10%. Oh well, the specific numbers dont really matter.
I think greater responsibility should be placed on the department to encourage firing. If the burden is mostly on the officer, than the department bean counters won't care as long the officer can write more "valid" tickets to offset the bogus ones.
Its also like if a waiter drops a tray of food on someone causing injury. Who is financially responsible to the injured person, the business or waiter? I think most of would agree that the business is. The business is fully within their rights to fire that waiter, but they can't withhold pay for the damages. If the business can prove the tray was intentionally thrown, then they can sue the waiter. But, the injured party should never have to talk to the waiter.
Should the be the same for an officer, if they make a mistake it's on the department to make it right with the affected parties. If the department proves the officer maliciously broke protocol or law, then they can sue them separately. The victim of the officer's actions should be made "whole" by the department, then the department and officer can figure it out on their own.