Working with toe in the front isn't really difficult because the tie rod ends are easy to adjust. If you have a lot of time, you can make your own "alignment machine" with string. Here's a link to a page based on aligning a Miata:
Sheldon's DIY Miata Alignment Page
Not as many parameters are adjustable on the Fit, but the basic idea for checking everything still applies. On the other hand, if you had coilovers installed, you might want to get a good alignment from a real shop for a baseline.