The road construction. When states go to the federal government for infrastructure grants to add or improve roads, that's the point where the federal government tells them they have to install conduit if they want the money.
From the first linked article:
"Specifically, the dig once bill requires states to evaluate the need for broadband conduit any time they complete a highway construction project that gets federal funding."
It's not quite as insane as you would like to suggest. If you read the summary below, and apply it to the examples you offered, you'll see that none would be examples in which you'd be legally justified in using deadly force.
Laws vary by state. In Pennsylvania (From http://www.pennlago.com/justif...):
Summary of The Castle Doctrine:
Somebody has unlawfully and forcefully entered your dwelling, residence or car (provided you're in the car); or
Summary of Stand Your Ground:
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