I don't think you have to submit your USMLE scores to AOA residencies. If you do, it probably won't have any bearing on you getting in. Shoot, many of the AOA residencies probably don't even know what a good USMLE score is. If they have a points system in place, it will no doubt hinge on your COMLEX and not your USMLE score. The only way I can see it coming into play is if perhaps there is a (fairly young) MD on staff. In this case, if you have a good USMLE score it could possibly help your cause.