I would talk to your local VAR, you should be able to work out a reasonable arrangement with them. (they typically have computers with SW installed for classes and such)
..or use your old college's CAD lab. Rather than ask for permission (set up for denial), just do it.
Unfortunately I moved after graduating, so my university is about 1500 miles away. However I did manage to get a 60 day trial version from my local VAR which should let me take the certification. Thanks for the suggestions!
If you get side tracked & need more time, see if there's a local community college there that will alow you to sign up for the computer lab. Alot of times you can sign up for 5 or 10 dollars, even though your not taking a class. I did take my CSWA a one. Just try to pick a portion of the lab that's a bit quieter if doing an exam there.