I am a angry about the Christmas LA Zoo lights thi...

I am a angry about the Christmas LA Zoo lights this year. I got there 30 minutes early, made line to get in for an hour, then they closed 20 minutes early. I thought I paid from 8pm to 10pm? I don't understand. They closed the marry go round 30 minutes early as well as the gift shops. Needless to say, we didn't see everything, it was way to crowded. This may be the last year we go.