If she calls animal control she'll probably get in trouble too. The animal is still hers, she is responsible for it's care. If she pays someone to do it and she knows they aren't doing it, that's neglectful on her part.
Bottom line, your animal means you are ultimately responsible. When I go on vacation I pay my horse friends to come over and take care of the horses because my family doesn't do it to my standards (throws hay where they poop, doesn't fill water buckets as needed, etc). So I find someone else to do it before it's a problem.