AABB region triggers can't be oriented or rotated. They are always aligned to axis. I think it would be easier to use Sphere region trigger which has a center and radius.
Trigger regions can't be modified. If you need it, I could add a new function to update region's position.
The best approach would be to change goal_combatmovement.gm to automatically disable it near some goals (RIDE, SWITCH, GRENADE...).