Need to write a query that will show tickets about to autoclose

[Rick Baker]

We have SD setup to autoclose tickets that are in the status of "waiting on customer" if they are in this state for 5 days. The smart value of autoclose is available but I don't understand the syntax to make this work. Example:

project = CSD AND status = "Waiting for Customer" AND "Autoclose 3 day warning" is TRUE

Any help is appreciated