Japanese QSO on VHF MURS CH1? More than once.

Late Friday night / Saturday morning, around 1:30AM EST, myself and a HAM friend of mine, heard mobile traffic on VHF MURS CH1, 151.820MHz FM. That, in itself is not too unusual, but these dudes were speaking Japanese. One, was using a Baofang HT, due to the recognition of its Roger-Beep. Thinking, that they were on Rt. 64, about 4 miles away is the closest point to me. I heard them on the scanner, with an indoor antenna. Then, heard them again last night around 1:30AM EST, SUN night / MON morning. Contractors rolling through? That, was different.