That would indeed be dumb, but once somebody dumb has decided to do that they're guilty of something much more serious and the car chase is completely justified.
Instead, arrive a bit early to the airport, and analogously, don't run visas down to the last hour based on the minutiae of Moroccan timezones etc.
The halftone technique demonstrated here takes a palette of 2 colors and increases it to something on the order of 20 apparent colors, but even with 20 there are extremely obvious bands.
That banding can be virtually eliminated by having way more colors (say, 256 if grayscale, 256^3 if RGB) or it can be virtually eliminated via dithering. I suspect the "error diffusion" technique (which is teased at the end of this demo) does what I'm talking about.
Noise is the key to dithering, and I don't see any noise in this demo. Everything is deterministic.
But the presentation is spectacular!