Uneasy
When they went to the vehicle, they managed to keep a slow pace. Rain might have cooperated, but she did the very least. Her body language was uncomfortable. She still was going to yelp and leap. It would appear that she’s not entirely convinced that her rescuers will not endanger her.
Reluctant
Finally, Rain was brought into the cage they intended to put in. This was actually their plan to put her in a cage before driving her to the clinic where she would be taken care of and get tested to check her health, etc. In addition, she had to bathe!