Sidelines Grill

My wife and I took some friends that were looking at property in Ashland City to Sideline.  We pulled up, the open sign was on, and the hours on the door stated that they were open till 10PM which was perfect as it was 9pm.  We walked in and after waiting 5-10 mins for someone to greet us what appeared to be the cook walked up and asked if we had been helped.  we said no and he said sorry were closed and I've sent everyone home.  I looked at him and said sign says open and the door says you close at 10pm.  his response was sorry, were closed.  keep that kind of customer service and it wont be long till your closed permanently. I will be telling everyone I know how you treated us.