SACRAMENTO (CBS13) – Kevin Johnson’s former aide Lisa Serna-Mayorga was in court Wednesday to face felony charges of theft and forgery.

Serna-Mayorga is accused of making $20,000 in personal charges on a city credit card.

Given strict orders not to talk on camera, she was rushed from the courtroom to a waiting car.

“Whether or not certain expenses were mistakenly made on credit cards belonging to the city, with the idea that they would be reimbursed afterwards,” Attorney Bill Portanova said.

So, a $20,000 mistake could be the defense.

Serna-Mayorga faced a judge Wednesday morning, accused of stealing and forging away thousands of Sacramento taxpayers’ dollars. A former aide to Mayor Kevin Johnson, and daughter of beloved Former Mayor Joe Serna, her multiple felony charges include using city-issued credit cards for personal family trips to Disneyland, grocery shopping and downloading countless iTunes songs.

There are also accusations of writing worthless checks to the city to cover the spending.

“She’s been trying very hard to get to the bottom of it in the past several months,” said Portanova.

Serna-Mayorga’s arraignment is being delayed until Jan. 30.