I think Kim wanted to get out of there because she knew she had warrants out for parole violation. The same reason she supposedly hid her number on the 911 call and asked the Kroger's guard to call later. I bet she beat it within seconds of the cops arrving at Kroger's...
If you recall she was immediately arrested following her later statement when to cops found out who she was.
Yep - no question Kim wanted nothing further to do with the night's events and you've outlined the reason why. I wonder if Kim had been physically able to get Crystal out of the car, would Kim have dumped Crystal in a ditch somewhere?
"after she gave a statement, police arrested her .."
http://www.newsobserver.com/122/story/438314.html
That suggests she was promised a probation violation deal in return for saying certain things. I wonder if her police statement came after the one she gave the defense?
I am certain Kim did want to get away from Kroger's ASAP. I find it very odd the DPD did not take her name or run a check on her car. Isn't that standard procedure?