It's quite hard to translate, but I'll try to explain why.
- cela vous dirait-il ?
is elevated language, which meaning is would you like to ? or would you consider to ?
- allez-vous faire mettre
this time, this sentence is very vulgar, meaning fuck off, go fuck yourself.
So the combination in the same sentence of elevated langage and vulgar langage gives some sort of polite way to express extrem despise !