I sent an email thanking the CIS officer for updating me on my 171H status.  Surprisingly, she emailed back and thanked me for understanding. She then signed it with just her first name (instead of last name and title). 

It was a nice touch and I appreciated it, but as my mother pointed out, she might actually get more done if she wasn't responding to emails!  Personally, after all the ignored emails I've had throughout this process, I'm quite grateful for the smallest bit of courtesy.  Thanks, Ms. CIS officer!

Time to stop obsessing...I'm going to work!  Catch you on the night side of life.