Uneasy
They kept a slow pace as they went to the car. Rain might have been cooperating, but she was doing the bare minimum. Her body language showed that she was uneasy. She would still yelp and jump. It would seem that she was not totally convinced that her rescuers were not going to harm her.
Reluctant
Finally, they managed to bring Rain to the cage that they planned to put her in. This was how they wanted to bring her to the clinic where she would get tested. On top of that, she also had to take a bath!