You used spray foam to keep PG&E off your property? I suppose that could be effective.Pg&E tried to denude our property of a few 200+ year old oaks. They are not allowed on site without one of us on premises. Folks down the road chased them off with a shotgun in 2018 after the fire. Well beyond their right of way the killed and cut up for firewood a 350 year old tree.
They are entitled fuckers charging us to install underground yet have seen zero advances in that direction.
We used spray foam and found it fairly effective: