Quote Originally Posted by septemberwn View Post
I believe the use of "heavenly bills" was Don's way of stating how high
The bill is for a doctor to make a "house call".
They threw outrageous parties
They paid heavily/heavenly bills

refers to the amount of money the couple are spending on their lavish lifestyle. The doctor reference doesn't occur until the last verse:

Call the doctor, I think I'm gonna crash
Well the doctor says he's coming
But you gotta pay in cash

which isn't necessarily a literal description of a crash scene with a literal payment (at a crash, not a house) but a continuation of the fast lane metaphor.