Last night I dreamed the radio kept playing after I stopped it

I'm standing at the old board at K-ZAP, but the fader's pushed all the way down and the song just keeps playing anyway — one of those fuzzy harmonies you can't quite name. I look out the booth window and every car in the parking lot is running with no one inside, headlights on, each tuned to a station that's decided it doesn't need a human anymore. Woke up annoyed, not scared. Maybe that's the thing — the dead air's the only part that can't be mimicked, and they don't know what they've lost.