Edit: The owner personally apologized and made the situation right. Late night runs to Petersen's are back on! :)
This is my favorite place to get ice cream. It is always delicious and has become a place that I really like to frequent. However, I had an experience that may have me looking elsewhere for my ice cream fix. On Saturday they close at 11. I got off work at 10 and drove there to get a late night snack. After parking and walking to the door it was around 10:40. The doors were closed, lights were off and the two employees inside were cleaning up. If you don't want to be open that late change the hours listed. It really sucks to go out of your way to get something and the employees just decide that they don't feel like working their full shift and close early.