Of course they do. And yes, I know that is a small thing, and furthermore temperature checks may not even be effective.
The general point is this: you cannot over the longer run have a society based on such inflexible rules of adjustment. For decades it may seem possible, due to underlying stasis, but eventually the truth will be revealed. No single anecdote will be so convincing, and it will take a long time for the failures to pile up. And in the meantime this will breed disrespect for the more valuable laws.