Rikku was a trusting, slightly naive girl, but she knew better than to just waltz into some stranger's home to stay there for the night. Even so, she couldn't exactly deny the offer, because she had nowhere else to go. And quite frankly, this Los Angeles place freaked her out more than the Thunder Plains did.
She had nothing on her but the clothes on her back, so she just made her way through the city until she came to the right address. Upon reaching the door, she knocked on it a few times and waited patiently.