Jimmy quickly finished his lunch and began walking out of the park; if even holidays were being canceled, it meant the case was significant. Moreover, Jimmy had a bad hunch that since he was called in, the case likely involved violence, and it was not merely a simple art-related case.
Although it wasn't the end of the workday, Manhattan's traffic was frustrating. Jimmy felt that listening to James and not driving over was a wise decision. In this traffic, riding a motorcycle, or even a bicycle, would be faster than driving a car.
However, motorcycles were truly unsafe, a concern Jimmy had considered before ultimately deciding against it. On one hand, it was unsafe; on the other, Jimmy had now become a man who wore suits daily, making riding a motorcycle inconvenienced.