No, it's because as a player, you are addicted to fast travel using the map, see
#29,367.
The link discusses my FAQ and recommending #1. Here's a link to my latest FAQ - posted last week
#30,410. Not just #1, but I also recommend reading #8 as well.
That said - there is one time where using the map is the only way, but you're already outside when you should use it (for searching for the ball with Becca after going the MC's house front).
Are you sure your quest says "There's gotta be a way to call harry" and not "There's gotta be a way to call Allen"
There are many "Talk to Officer Swan" tasks - one (or two?) at the mall, a couple on the street outside the school (the first is by clicking one of the cars, after that Swan is visible), and once in the school hallway.