How long will it be before someone walks out of a store with a toll card protector
and a passport cover in their pocket, and are arrested for intent to steal
because they had multiple “theft detection shielding devices” on their person?

the document you’re currently linking to seems to actually call it a “theft detection shielding device”, by the way, not a ‘threat shielding device’… to that end a google search suggests colorado isn’t the only place with laws about this sort of thing…