We had "long-haulers" on Maui too. If you complained to the owner (not Art, but the ass-wipe that bought Royal from him) about other drivers doing this, you were on his shit list.
Companies that "split the meter" with the driver would tend to shut their eyes to these violations because it is extra money in the company's coffers. Companies that just charge a flat lease fee for X number of hours of cab usage don't have a financial interest in promoting this form of illegal activity.
"Let's all be careful out there!"