horn...wtf?

Some idiot was driving in front of me and cut me off so I had honked at him.
Then someone else did something and I honked once more however this time it made no noise outside
yet inside my car it makes a retarded high pitch whistle sound.
I tried rehonking a couple of times but it keeps making the high pitch whistle sound inside my car
with no exterior sound.

Does anyone know what happened, how to fix this, and wtf is wrong with my horn lol