Will I get in trouble???

I work for a museum in the gift shop and on Saturday's it's just me and the my manager. Today we were supposed to be open till 5:00 p.m, but she wanted to close early so we closed at 2:00 p.m. I was ok with it because now I get extra time with my husband, but I am worried that our big boss will get mad at us. He said if no one comes in by 2:00 p.m that we could close, but we had people coming in and she just told me to tell them that we are closing at 2:00 today, so I did as I was told. Am I going to get in trouble if she does?