I have a bunch of friends that attend there and applied and were rejected and received that same notice. It is just the standard e-mail and as Mike suggest it is just to prevent them from being bothered. Nothing you do or say is going to make much difference at this point, all you can do is wait. Again, this is just the type of the iceberg you get in then you get to wait 6 weeks or something for your first semester grades and go through this cycle 5 additional times. Then you get to wait months to get your bar results back. Then I can only imagine the stress of a trial, or appellate decision. The law requires a lot of waiting around while huge decisions are made.
Your numbers are up there and they are going to admit, reject, or waitlist you. If you are waitlisted then maybe you can add something they will probably give you notice at that point, but right now nothing you do is going to impact their decision. Well don't commit any felonies or misdemeanors that might get you in the reject pile, but otherwise your application, GPA, LSAT, Personal Statement, are what they are.
The waiting sucks, but there is nothing you can do about it and don't really take that generated e-mail to mean anything negative or positive.