Just remember: they can get away with anything. It's their word against yours, and they will always win. If you are lucky enough to have any evidence against them, it will just get lost eventually (your case in point).

> They can taser me all they want, Ill just use it as a public campaign against them.

No one in a position to do anything about it will listen. You'll just be adding insult to your injury.

When encountering law enforcement, it's best just to "yes sir"/"no sir" them, and hope you don't come out of it with a charge, or worse. Every question they ask you is an attempt to get you to incriminate yourself. They are not there to help you. It's in your best interest to do everything you can to end the encounter as soon as possible.