Thanks, I'll see about a public defender. Edit: unfortunately, I believe it's a civil matter so I don't think I can get a public defender.

Civil matters don't usually end with either probation or jail time. If you can't afford counsel, I suppose you might be able to find an attorney who would trade you representation for some development or technical services. Other options might be legal clinics at nearby law schools, or pro bono programs. You can also call the local bar association and see whether they have a referral program.

I know you weren't really asking for information, as such, but you might get some useful tidbits if you include the city (and possibly the ordinance you ran into). Maybe there some advocacy groups in your city that can help you out.

I was able to find a local legal aid society through my state's bar association, so thank you. Looks like they accept volunteers as well, perhaps they could use some tech service as you suggested.