It seems that this might blow other types of cover, though.
If the border guard notices glitter-covered screws on Ordinary Joe's laptop, that might tip off the Imperial Guards to keep a close eye on him during his stay.
If success requires getting people to care about anything at all we've already lost. Electronics should just come with tamper-evidence as a feature. They should come with these things pre-applied so that everyone has them whether they care or not. Then they can't single you out for having them.
If the border guard notices glitter-covered screws on Ordinary Joe's laptop, that might tip off the Imperial Guards to keep a close eye on him during his stay.