I wouldn't play with it. As long as you have the warranty have the SC fix it. I'm assuming you have the same rattle and same area as the OP? I have the same.
Hopefully an easy fix for them removing the dash as I read somewhere that SC broke the dash while removing it and the owner has to wait a few weeks to get a new dash.. bummer. I have an appointment next week 12/2 and I will post an update here to help others.
I have the same issue. I think the rattle is coming from the dash as well. May I ask if your issue is resolved by SC and how it was fixed? Thanks in advance!