For what it's worth, I've seen the message in question, and I am horrified that this customer was reprimanded for doing what anyone in their right mind who noticed such a thing would do--that being, notifying the merchants and staff. I think an apology is in order, myself. It appears some merchants and staff members might have forgotten that customers give us money, and tend to not do so when they feel like they're being ignored or slighted.

Driver picks the music. Shotgun shuts his cakehole.