I'm not too familiar with the environment for part-time applications, but I think UCLA might be a stretch. Your stats will probably be towards the bottom of their normal range, and your undergrad record (school, GPA, transferring, etc.) is not strong.
I also have some question about the leadership experience that you described. You were elected a leader for your team, but then you quit the team? Unless there's more to it, it doesn't sound very positive. Also, as others pointed out, that was 6 years ago. They are much more interested in more recent and especially professional-related leadership experiences.