I'm assuming you paid cash for the car? Because unless the car is financed, you don't have to carry anything more than liability insurance, which generally is not too bad (depending on what type of car, your driving record, and the area you live). If the car is financed you have to carry full coverage.

Do have your day in court, and they may defer your ticket or let you pay in installments. But in general that won't happen if you don't bring proof of insurance with you.