Hi, I had to look up "Munchkin Code"... which seems to be a Marketo specific JS...
I don't have Marketo, so I am not sure the best way to integrate with Adobe Analytics... but have you also tried posting this in the Marketo forum? Maybe someone over there would have more insights?
https://nation.marketo.com/
I can also try to find some Marketo users if you can't get any traction on this.. I can also try to look into this code, but this would be new to me (so no guarantees)