Strikes me as someone doing something while driving that is discourteous but not illegal. My course of action would be determined on his reaction. If it showed a genuine lack of thought and remorse for not telling you, I would let him off the hook. If he was being legalistic, I would give him grief and a bad review. It should have been mentioned in the description. Minus one star no matter what.
Also, like someone said... upgraded tweeters... that is a cause for alarm.
Also, like someone said... upgraded tweeters... that is a cause for alarm.