This is just one of those stories that make you cry but warm your heart. Apparently he filmed it because he was originally angry that it took so long to get any response when he tried to call various rescue societies for help when he first saw the cat stuck on the freeway, so he went back to get the cat himself. Bless him.
http://www.myfoxphilly.com/story/28792892/video" onclick="window.open(this.href);return false;