Yes you're right; Forget It by the group "Breaking Benjamin" is the perfect song for the scene when Matt delets the files on his notebook; It's a very emotional scene, and it's the Music what makes
many scenes so special!

As you mentioned it before, the melody that we can hear when Elyse is waiting for Matt on the pier,
of course, is very cool, but also a bit tearily; But I believe it's no particular song, just a melody;

I did some research on the web; In the end the film says "Special Thanks" to the Range where the film was made; Here is the link http://www.calamigos.com/ , you'll find some
interesting pictures of the location and the pier where some very emotional scenes happened;

The other "Thanks" goes to http://spychest.com where he orders his hidden cameras and stuff!

And the link for the High School is http://www.tafthigh.org/