Definitely do the A/B wash. Wash your HCL wash (amine "dissolved" in the acidic aqueous phase) with xylene or toluene and NOT DCM and discard this layer that has the unreacted ketone.
wzhy souldn´t one use DCM at this stage? - I think it is much easier to handle, and extracts the non-wanted byproducts & ketone very good.
Its clear that the DCM washes must not be washed down the drain, because chlorinated organics are a bad thing fot the environment... - so redistill & save a lot of money & solvents!