This sounds a bit stupid but you should really be keeping a diary of all the times they have pulled you over and what has been said, it would help a lot in regards to the harrassment case.

No-one in their right mind can judge someones speed with just their eye, let alone get it as close to 114.

Sounds like you are in the right on this one, restraining order could be on the agenda against the cop, just make sure you have some evidence and enough logs of this happening. It would be worth paying out the cash just to get that creep of your back.