Interesting thought. That would leave us with the departments of: state, treasury, justice, interior and agriculture.
There would be no income tax
There is electricity, both AC and DC, street lights, street cars, motors, telegraph. There is limited radio and telephone but no television, computers, internet, or cell phones.
Money (FRN's) would probably not be worth much, other than a way to deal with the looming TP shortage and as fuel to keep warm.
Things like gasoline as well as everything else will become hard to find.
Lets take a look at a hypothetical. 2-3 high altitude EMP pulse (HEMP) bombs go off over the country and fry just about all electronics. It's worth noting that we don't make transformers in this country any more. There was a hurricane a while back, I want to say Hugo? Anyway, it took out so many transformers that it took 8 months to re-establish the grid down in FL because the transformers had to be ordered from Japan. What if we lost most of the transformers in the country? What if someone got pissed off at us and decided to embargo us?
Well, how would you fare in such a situation?
If you are dependent on maintenance drugs, you will most likely die.
If you live in a city, you will most likely die. - rioting, 3 days worth of food on the shelves, 1-2 weeks in distribution warehouses.
If you live in the suburbs, you have a fair chance of living. Problems are the people fleeing the city and limited space to grow food. Closer to farms though.
If you live in the country, you will probably survive. You most likely have to skills to be self sufficient, already are to some extent and are able to provide for others. This is 5% of our population.
How do you think you would fare in such a situation?
-t