The Seattle Police Department says Michael Sean Stanley was found in downtown Seattle on Thursday and was ordered to register as a sex offender.
He wasn't arrested because Canadian authorities have declined to try extraditing him.
Seattle police say the 48-year-old could be arrested if he fails to register as a sex offender.
Stanley has a long history of sexual offences against women and children and had been missing since Oct. 1, when he cut off his electronic-monitoring bracelet around the Alberta-Saskatchewan boundary.
Canadian authorities warned U.S. counterparts that he might try to cross the border, but U.S. officials allowed him in after determining he was a U.S. citizen and not the subject of an extraditable arrest warrant.
Also on HuffPost