Dummies. In my country there is magic spell: "it's only for three minutes", in Italy they use "park anywhere" magic button (emergency lights). Don't believe there is nothing like this in US.
(I don't mean that it's a sufficient cause for a given cop becoming corrupt. Just cases where it was the deciding factor.)
My favorites for the first type is a deputy fire chief from a Long Island volunteer department who works construction and just double parks the department SUV in front of the site.
I couldn't do it because getting slapped with a fine would cause an anxiety flare-up even when I knew the consequences beforehand. (And also I have worse luck than other people and can prove it with math!)
However, I did pull a similar stunt in lower Manhattan for awhile too, though I moved my bike on street cleaning days- though to another illegal spot by my office building- at that point I was living in Battery Park and my office was right off the west side highway in Tribeca, and I never had a single issue doing that.
Great way of attracting attention to yourself.