I would just say a simple thank you when appropriate is fine but I wouldn't go out of my way to send one, if that makes sense. Like, if he mentions it, just say thank you. But I wouldn't break NC to send the thank you.
I agree with Sparkles. I don't think it is worth breaking NC to send the thank you. Keep us posted. I hope you had a good day, Hope
M 44 H 46 M 20yrs T 25 yrs S15 S12
ILYBINILWY 7/18/15 Move to MBR 9/8/15 Physical Separation 10/10/15 Suspect A 8/2015 Confirm A 12/27/15 D filed by H 2/2/16