Yes, you can add a disable firing argument into your script header row. This argument is a button value (1-18) placed into column G. When pressed, this will stop all modules from firing, but allow the 18R2 and Audio Box to continue.
The Show Controls feature of the COBRA Control Panel has a button to disable firing, even if you don't have the script header argument defined.
For more information on enabling this feature, please see our 18R2 Creating and Uploading Scripts User Guide.