Bismihi Ta'ala

Without a doubt, this is an ideal opportunity for one to invoke durood upon Rasoolullah Sallallahu alaihi wasallam. It is a mark of respect. Although Sallallahu alaihi wasallam is not part of Kalimah, a Muslim reciting it should not let this opportunity of durood shareef pass him by, as it doesn't cost him anything, neither does it take much out of him physically.

And Allah knows best.