Why not asking about updates of search process
I think there are only two cases where you should follow-up with the search committee:


The time by which they said they would get back to you has passed. 
You have another opportunity that requires a time-sensitive response. 


A while ago I read some good advice (somewhere on this site) about how to deal with the waiting period after a tenure-track interview: 


  As soon as you're done with the interview &amp; visit, thank everyone who you've met, and then immediately move on with your life under the assumption that you did not get the job, i.e., search for the next opportunities, etc.