3d dots in space...
Just spoof the dots. Block the IR emitter, and have a pre-printed "hash crash" dot matrix. These things are "AI" driven (hint, just maths, not real AI). So if you know the average to try for, a few known hash/algorithm breaking dot arrangements and you can hit a false positive and open the device.
Oh, it will take someone to do the math, as they did with the "turtle or gun" image recognition. And yes, the IR device means it's a bit more complex than an image hash false positive search. But at the same time, if they find the exploit, it will be up and out to everyone and their dog to replicate.