In Texas and most states not auto friendly, you would be just as screwed with a presentation auto as a full opening auto. There is *NO* distinction as to how open the knife gets just that it opens via button or other device.
Here in texas it would fall under the penal codes 46.02. & 46.01. & 46.03. & 46.05. & 46.06
7) "Knife" means any bladed hand instrument that is capable of inflicting serious bodily injury or death by cutting or stabbing a person with the instrument.
11) "Switchblade knife" means any knife that has a blade that folds, closes, or retracts into the handle or sheath, and that:
(A) opens automatically by pressure applied to a button or other device located on the handle; or
(B) opens or releases a blade from the handle or sheath by the force of gravity or by the application of centrifugal force.