After watching the scene a few more times it's "The cow jumped up at the moon" not "over"....so it is not the exact wording of the nursery rhyme. Not sure if there are any hidden messages in reverse wording here, but it seems like there should be.

Wondering if DoppleCoop just initiated a system whereby he can "upload" himself out of prison....unless he blows it, and ends up in a doorknob....

^ I think he says over, but anyway whatever he says it has a deeper meaning..

^^ When Evil Coop was in the motel after killing Darya he did in his computer something like he got the data of the prison who is now, so that can be a thing in how he did it.