No, they won't. Tree Sitters in Berkeley liked to cavort naked in the tree, and throw feces and urine at anyone they saw fit.
Sort of like chimpanzees ...
A charged fire hose could have given them a new attitude. Hose them down right before sunset. Wake ‘em up early in the am with another hosing. Maybe wet them down a few times during working hours. It’s all good.
Well, you said it. Gud fer you.