Because she was watching and waiting (two calls) for a cop car to show up?
Shed had plenty of time to pull on a pair of jeans and a top while she was making the first call, but she was Australian and maybe their alleys are cozier than American ones.
Do you think its normal behavior for a woman reporting a possible rape to go stand outside in her night clothes in a dimly lit alley where she thinks the rape occurred?
Think again.