Yes, Martial Law.
Martial law doesn't have to be called "martial law" to actually, legally be martial law.
That IS the law on martial law.
Correct. When you have heavily armed troops (it doesn't matter if they are Regular Army or LAPD; if they are carrying M-4's or heavier, they are troops, not police any more) tossing aside the civilian-law requirements of warrants and probable-cause, ordering citizens to obey at gunpoint, then it's martial law regardless of how it's called.