(Portland, OR)  --  A Portland woman says she was taken by surprise when her stolen car was returned to her home with an apology note and money for gas.  Erin Hatzi says her Subaru was stolen Tuesday from her home in the Woodstock neighborhood, but it was back in her driveway yesterday, containing the note and 30 dollars in cash.  She says the note offered an apology and said a friend was sent to pick up their red Subaru, but returned with Hatzi's vehicle instead.  KATU-TV reports police have confirmed that ignition keys are sometimes interchangeable among older-model Subarus.