Lets explore this idea:
A lineman drives by my property, sees a bunch of solar panels on my shop from the road (~200' away at the closest). Then what, he thinks "They have solar panels. I'm gonna get them, and their little dog too!" ? He has no reason to care. No reason to think anything is awry - because its not. But whatever, lets say his spidy sense tingles and he takes interest.
Then what? He isn't a meter reader so he can't trespass.
But Let's say he works dual-role lineman/meter reader. Here we are entirely smart meters, so no meter readers anymore, but for the hypothetical, lets say he has 'something' (exigent circumstances) that will allow him to trespass onto my property legally (Yes, trespassing legally isn't trespassing?).
Then what? There are solar panels on my shop, a external utility disconnect adjacent to the meter, and nothing else for him to see. He can't go into my garage, shop, or utility room.
But whatever, let's say I let him in. Show him the whole system. He asks me "Is that inverter thingy approved by Entergy?".
Me: "You know, I really don't know or care if it is. It's my appliance in my home. They have no more regulation of it than my water heater. But thanks for stopping by. Try to stay cool out there."
This whole thing is like being afraid to cut the tags off your mattress or getting in trouble for using a aerosol can in a manner other than directed by the manufacturer (to be clear I am not advocating huffing, talking about spraying it upside-down or something similar).
It's looking for something to worry about/fear. Don't. We live in the freest society on earth. If you don't pick some ones pocket nor break their leg they will leave you alone, Karens aside?.