Personally, I don't believe for a second that Kim tried to find out where the AV lived.
Remember, Kim seems to have been recruited by Simeon. What was Simeon's angle? Willie Gary? Jesse Jackson? Civil Lawsuit. What was the environment at that time?
1). There was no monetary value in saying it didn't happen and Kim would have been villified in the black community. More than villified. Remember the environment at the time - Black Panters, Jesse Jackson, Victoria Peterson.
2) Some in Durham like Kim's lawyer believed there was potentially a civil lawsuit or maybe a large settlement to make it go away. Kim doesn't need much convincing to be on the side of Green.
Actions speak louder than words. Kim's actions that night show, IMO, she was not concerned about Crystal. It does show she was concerned with getting her out of her car and getting out of Dodge.
In short, Crystal became a celebrity and a cause in the weeks after the party and Kim's only opportunity to benefit personally was to get on that bandwagon.
We need to examine those radio tranmissions closely and compare them with times. The nurse at Durham access describes Crystal as being INCOHERENT - So how does she convey the information on her kids? That is the question.
I think Kim tried to find out where Precious lived because she was trying to figure out how to get rid of her. According to her written statement she was getting ready to go when the guys told her Precious had passed out. Kim said if they could get Precious to her car she'd get her out of their hair. Once the accuser was in the car and they were driving away Kim called 911 to complain about racial slurs. When she was done with that I think she took steps to get rid of Precious. The logical way to do that would be to find a place where she could dump her. Unfortunately for Kim, ditching Precious wasn't easy and eventually I think she got fed up and had the police called.