I did just that.
I paid $100 for them to check it out.
They looked at it in the shop and did an 18 mile test drive and wrote a report: "Could not duplicate customer concern".

I'll admit, I could not get it to chatter when I first picked it up
( It was in a heated 65 degree garage ) but I could swear I heard A/C chatter the first time I turned on the defogger AC on the drive home...
( When it was about 40 degrees.... )

It only happens for a couple of seconds when it first starts up...
Not when it is actually running...
And it comes from under the hood....