Only once I saw a German T3 tanker running TMO and RSRDC, it was on my very first patrol in the area but it was a long wait. She was NNW of Okinawa heading SW if I recall correct.
I know FORTS has a few Axis vessels sailing the Japanese main coast, some of them even shoot back
Edit:
What Sniper says.. there is a lot of Aussi and Dutch shipping beginning 1942 before the Java invasion... I've seen them sail after Feb 28 in that region... makes me wonder what those sailors are thinking tho.
Same goes for US vessels, still going to Manila after it has been taken
