First let me be honest about driving on a ten yr revocation. Now my issue is even though I shouldn't have driven the reasons for the stop were untrue.

Ok, lets be frank. You are a "bad guy" illegally driving around with another "bad guy" (you used the PC term a person of interest)on probation or parole,  in your car and the cops tear car apart presumably because they suspect there was trasportation of drugs or some contraband involved. First, this is the hassle you get when you are committing a felony and continue to associate with "bad guys". Second, your 100% promsie that YOU BELIVE you had a turn signal on is of no consequence, is not the same as actually having done so, and certainly as a felon, not credible, even if true. You will need a dash cam or some objective evidence beyond your "good word" on the issue. Third, if they found no contraband  and no charges from the search they may owe you for the damages done to the car, and you need to address that for sure. In the mean time, felons complaining about police misconduct, while in the act of commiting a felony with another felon on parole or probation in the car, who is the obviously the target of an investigation, presumably drug involved, is simply NOT a credible person to raise a police misconduct allegation or prosecute a civil case in that regard. If you REALLY feel strongly about it, you can if you like, retain any lawyer at an hourly rate/retainer basis and spend your money to take the issue to task to make a social justice point at your expense, but don't be surprised if lawyer have little interest in backing such a claim with thier own money for the reasons stated above. You can also try organizations like the ACLU but, again, they may have little interest given the underlying facts. It wont hurt to ask though.