Regarding this character called Coyle, arbitrarily introduced towards the end whose role in the affair remains unclear:-

surely the result of a misunderstanding of

"I blame old MacMahon for bringing coil here"

~~ 'coil' in the old sense of "tumult, hubbub, noise, fuss: [as in Hamlet III i 67] ('mortal coil') the toil and trouble of human life" [Chambers Dictionary]?

~Michael~