My hope is that it's to give her plenty of rope to hang herself. Let her make outrageous accusations and distortions, then quietly release the security camera tape, witness statements, etc. that blow it apart and make her look like a greater fool than she already does.
C'mon, anybody with common sense recognizes the cops weren't racist. Most of DC is black already. Now they might have been prejudiced against anybody behaving as a B**ch.