I think that's the question on everyones minds. A judge has to order it though, which would trigger a direct confrontation between law enforcement divisions.

They could also order assets frozen or something though (I think?) which I don't understand why they don't do.

Yes, court orders. But the officers that enforce them are part of the executive branch, so under Trump. They have been purging all career agents so there’s few left to willingly enforce court orders.

Its a coup.

Law enforcement is under the executive branch. The judicial branch doesn’t have any physical ability to project force. The courts rely on the executive’s respect to carry out the rule of law.

Here's an informative Congressional Research Service article on Enforcement of Court Orders Against the Executive Branch.[1]

TLDR; courts issue TRO (temporary restraining order), preliminary injunction, or permanent injunctions. Normally people comply. If the government does not comply then individuals can be found in civil contempt and the U.S. Marshals would enforce that. Civil contempt can't be pardoned.

There have been some TROs and injunctions issued but also some ignoring of them by the government (and also the supreme court has temporarily stayed at least one). I don't believe any contempt rulings (findings?) have been made, so not yet appropriate for the cops (Marshals).

[1] https://crsreports.congress.gov/product/pdf/LSB/LSB11271

I dunno, if there were like 30 of you all wearing orange vests and had relevant department of transportation stickers on actual work pickup trucks I think you might be able to get away with it as long as you threw some cones to dead-end one way of the intersection.