However unless they had another reason to look in your direction in the first place, that probably wouldn't happen.
These smart meters they are attaching to everyone's houses I think gives the fuzz all they need.
It happened to someone on the forums right here. They had a helicopter with thermal cameras so see if all the heat is located in one room and then got the search warrant.
Did they confiscate his miners? Did they just come in, check it out, then leave? What are the details?