California's similar law was struck down by court on the basis that states can't legislate federal agencies.

https://calmatters.org/justice/2026/04/immigration-mask-ban-...

> An 1890 Supreme Court case provides that a state cannot prosecute federal law enforcement officers acting in the course of their duties.

> The law also ran headlong into the Supremacy Clause of the Constitution, which holds that states may not regulate the operations of the federal government.