They don't need an inspection, they can easily detect a non-stock tune over the H-D/Dealer network. If the dealer is thinking they can just put the stock tune back in with the PV before connecting to the network, maybe that will work and maybe it won't. I read elsewhere that the PV still leaves a trail in the ECM even after restoring the stock calibration file.
In this case the engine has sumped. If there is any internal damage, especially if a new engine is required, odds are Harley will figure it all out. I really don't care, I have no skin in the game. I just hate seeing people be conned, or con themselves, into believing they can get away with the same things they did in the bad old days. We've already had posts from other members on the site acknowledging the fact that Harley voided their powertrain warranty after they made illegal mods. This guy's been warned; and he responds with "attitude". So be it, don't expect any sympathy if bad things happen.
Jerry