No, I don't think that will do anything but mildly inconvenience them.
We had these chiller units at the lab I used to work at. They are built like a tank, the only vulnerable part is the two pipes carrying water in and out of the building. Plus our security people insisted we surround the chiller with a twelve foot fence topped with barbed wire.
But even if you do shoot out one of the pipes, all that happens is an alarm goes off the and the system does and orderly shuts down. Our system was installed by the lowest bidder and failed all the time, no really problem.
So if you were to do this, all you have done is risk your life and liberty to mildly annoy the powers that be. You'd be more effective running for local government and cutting them off from the municipal water system.
Plus these building aren't wood, they are steel and concrete, you can't even burn them down. Only a transient power event, that overwhelms the surge protection would do any harm.
Say like covertly putting up a lightning rod and running a wire to the building.
But they know they are hated, and these places are well guarded. You will never get close to one. I just don't see a realistic way to do any damage except through the power line running into the building. Maybe via a substation.
As nice as it is to fantasize about this stuff, you're attacking a fortified fixed position. They know you are coming, and law enforcement and government is on their side. Seems like a suicide mission.
Already been done.
Revelation 11:18 in the King James Version states: "And the nations were angry, and thy wrath is come, and the time of the dead, that they should be judged, and that thou shouldest give reward unto thy servants the prophets, and to the saints, and them that fear thy name, small and great; and shouldest destroy them which destroy the earth."
They just ignore it.