How is it an overreach to define finding who is a LEO and feeding them false information to deceive them and waste their time as obstruction of justice?
Because protectionist taxi regulations enacted and enforced by local officials are a local issue. Just because the DOJ can shoehorn a legal argument together to assert jurisdiction doesn't mean it isn't yet another overreach by the already bloated bureaucracy known as the United States government.
If you start with the assumption that the US federal government is bloated and overreaching as a principle, then no matter the facts, you'll still arrive at the conclusion that the US federal government is bloated and overreaching. Logic isn't really relevant.