There has to be more to this than you have stated. Do not discuss this any more in a public forum. Instead, go speak to a civil rights attorney immediately. You can find qualified lawyers by clicking on the Find a Lawyer tab at the top of this page of contacting your local bar association for referrals.
You need to consult with an attorney that specializes in civil rights cases. You may have a false arrest, unreasonable seizure, equal protection class-of-one case, against this office. Make sure to keep track of the stops (dates, time, location, etc). You might also want to file a citizens complaint against him at the police department.
The short answer is 'see a lawyer' and discuss all the details.
Nothing you posted indicates harassment is happening.
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