Following a slow driver is not the best way to get to work on time and so it is understandable to be in a bad mood after that.
Context: I got behind a slow driver and it ticked me off because it made me late to work.
Hypothesis: It put me in the greatest of moods when I followed the slow driver and it made me late for work.

Given this context, is the hypothesis true (Yes/No/I don't know)?