Speaking from experience, you cannot rely on your interpretation of the law to settle disputes.
It's the golden rule here.
Perhaps buy a BMW and countersue her for wasting your time.
Funny what you said about line cutting, pissing and shitting. They do cut the line here. In Zhongli they do anyway. Even in cars and on scooters. If you drive a BMW you can do whatever you want.
Do not pay her any more than $65.