I tried listening to police bands on actual radio over where I live (in some places they don't encrypt their comms yet). Gave up after hearing way more PII than I was comfortable with.

There's a similar problem with taxi bands, though it's been improving over the years (in particular, the new wave of pay-through-app taxis helping). It used to be that drivers would read full card data aloud to transmit it to the base - in-the-clear.