From your short situation description here are some things I noticed (may or may not be right.)
1-You want a higher paying job then your current employment. (duh.)
2-You would like to use your college degree to leverage this.
3-You could care less whether this career jump involves the practice of sociology. (A guess.)
4-I really hope you have some great job prospects when you get the graduate degree in a jobless undergrad field.
Assuming the above are somewhat accurate; you may want to consider a change in approach.
Consider changing your outlook which probably looked something like this previously
Undergrad Grad School Super Fun Job $$$$$
You have completed step one. Moving onward in the original plan seems illogical in the current economy. To succeed you need to act innovatively in products or methods, AND/OR make yourself more marketable (which grad school in theory does, but in actuality probably will not.)
Some examples of product/method innovation options:
What have successful sociologists done in the past which you can modify/adapt/improve upon? Self help books, motivational tapes, foreign correspondent, or forming a political action committee - your wealth of options is an advantage, not a limiting factor to your future wealth.
Languages, Writing, Communication, Human Resources, write a book explaining your sociological theories.
Try to think outside the box in your approaches:
Does the oil industry need an expert sociologist? How about to manage population growth effects and reactions to petroleum drilling by native populations? Perhaps in Africa or other 3rd world/ unstable areas - Create your own professional position, and market it to businesses showing them why they need you.
(This shit was really hard to think of because sociology is about as useless as underwater basket weaving.) -But basically fake it till you make it.
Another Viewpoint: You have your whole life to fuck up and still pick up the pieces -the valet job will be there as a fall back if you need it.
Exceptions so you should completely ignore this:
1. Great job prospects/connections
2. Rich Parents
3. Knowing you have a love of the field of Academic Sociology
If all else fails take the LSAT and pray.