I swear I could see the poor schmuck jump in his car. He pulled onto the shoulder and let me pass.
I turn to look as I pass him, and the look on his face is a mix of "Shit, that was close!" and "Damn, did that Miata make that noise?" I bet he will think twice before pulling in front of somebody like that again.
So I should say, the new horn passed the road test with flying colors.