No, you're not a libertarian. You're a sheep. An authoritarian sock-puppet.
The cops harass people from across the street, from their porches and doorways, from across fields. They harass from hundreds of feet and there have been stories posted today and before today on this topic.
Banning recording within 8 feet means that no individual can ever record what happens to them. That means that no driver can ever record their interaction with a cop. Yea, that's a real libertarian scenario. You're not a libertarian; you're an anti-constitutional authoritarian.