But the Burlington Northern Santa Fee Railroad occasionally violates that rule. Sometimes it blocks intersections for as long as two hours (!). Fairly regularly, even.
Eventually, the City Attorney of Richmond got fed up, and filed a misdemeanor complaint against BNSF for violating the order. BNSF was convicted and sentenced to pay a fine of $1000. But BNSF wasn't done. It filed an appeal. Paying far more than $1000 on attorney's fees. For the principle of the thing. The principle of getting to block street traffic for hours at a time and not letting the state do anything about it.
The Court of Appeal agrees this is a valid principle. Reversing BNSF's conviction on grounds of federal preemption.
Those pesky states. Always getting in the way of progress.