I believe you miss the point, which is that the Police state started creeping in long ago. For posterity, it had to creep in.
Long ago, a Police state could occur in a swoop because a massive army of police could run down on an unsuspecting public. Advancements in communications have made the level of secrecy required to build up such an army nearly impossible. To think that the people in power didn't realize that fact is sheer idiocy.
This is why it's a progressive amount of force and liberty erosion combined with a massive media campaign, and has been for at least 20 years. The amount of propaganda is increasing with every EO that erodes some civil liberties. In addition, the rhetoric to pit average people against each other has been increasing from media and politicians as well.
It is, a very well coordinated attack. Lots of people have been catching on and voicing alarm calls. Others are clueless as they simply live in the proverbial cave (Plato/Socrates). Still more hear the alarms but fear cognitive dissonance and change so much that they deny what is very plain to see if you care to look.