I remember a few years ago when pallets of bricks mysteriously showed up on the streets. How hard could it have been to backtrack where those came from? I don’t think anyone ever looked into it.
Even if they backtracked and found out where they came from, the Feds would probably ignore it, or drop any charges associated with them, like they dropped the case against Alejandro Theodoro Orellana in June for handing out masks and face shields to protesters. This was in Los Angeles, Ca., the same state that tried to ban ICE officers from wearing masks.