Would this guerilla tactic be immoral?

[Existentialist]

I have an idea for a great guerilla tactic that would increase the sales of blu-ray movies. Yet I am debating on the morality of it. It is a pretty simple idea; go to shops like Hastings, or anywhere that does special orders, and order a few blu-rays, that you don't intend to pick up. I know at Hasting's after a month of not picking it up they will put it on the shelf to sale to anyone. Sooner if you call and tell them you changed your mind.

I feel this would help them get more titles on their shelves, in the form of unclaimed special orders, as well as getting more sales for blu-ray.

Like I said it would be dishonest, but Hastings did fire me for no reason, so I can justify myself doing it there. As for the rest of you, what do think? Would this be sinking too low?