Something very similar happened in 2008, and I think also during the 0Care debate. Some police chief somewhere, I think it was Kansas, announced he would arrest anyone who said something negative about 0. It’s just part and parcel of who 0 is.
I am a big supporter of the police (yes, I know there are some bad ones out there who deserve to be in prison), but if you arrest me for exercising my 1st Amendment Rights in a PEACEFUL manner, things won’t be peaceful for very long.