RedactedNarrative: Vessel was bound for Hawaii.  Customs and Border Protection and NOAA OLE suspected it was arriving from unknown, foreign port.  CBP and NOAA OLE requested DOCARE to conduct MSA/ESA inspection of vessel as it approached Hilo Bay. Approximately two hours later DOCARE spotted the SN Mystique in near shore waters and approached. At that time DOCARE heard Operator making a distress call to the USCG that the vessel had lost its rudder and he was unable to hold a course. DOCARE attempted to place the MN Mystique under tow, but was unable to do so due to its size and poor weather conditions. DOCARE repeatedly instructed Operator to deploy his anchor which he failed to do. Shortly thereafter the MN Mystique struck the breakwater and was repeatedly driven into it by 3' to 5' swells. Operator jumped into the water and was brought on board the DOCARE vessel. Vessel was of wood construction and a total loss.  Asked why he did not deploy his anchor, the operator said his anchor line was tangled and he decided not to use it.