Post Office change?

So I went to the post office today and noticed something strange- the no firearms signs that were previously posted are now nowhere to be found. The no smoking sign is still up, and there is now a no trespassing sign that I don’t recall seeing before, but… Previously there were absolutely signs regarding guns on the premises, and they appear to have been removed.

Did I miss some kind of big news or something?

https://imgur.com/a/QG1ZWPF

Edit: I should mention that fairly recently (the last month or so?) when I was there last, the signage was still there.