Fair enough.
Did they tell you about this before it happened?
Well that would have been nice of them to let me know before it happened. There was no official announcement from the carrier as I recall (it's been several years now, back before SOA's were even required), but my regional rep with the carrier told me that they were having some issues and decided to perform their own internal secret shops. Could this have been prompted by CMS? Possibly. But it wasn't CMS doing the secret shops as you see today.
After the fact, when I realized that was what happened, I asked my regional rep and was told I had in fact been secret shopped. Since this was something new to me, and really to everyone in the early years of MA, I didn't recognize the signs at first. And man would they be obvious today if they happened the same way.
These days when I get a call and they say they got my name and number from a carrier, or they just can't remember where they got my name and number, I tell them my calender is booked for the next month and they may want to call the carrier to find another agent to work with. It's not that I'm concerned about doing anything wrong. I just value my time too much to waste it that way.