"Once it became clear that there were very high error rates, we didn't feel comfortable with the program, and we moved quickly to take it offline," said Kevin Harris, a spokesman for Mayor Stephanie Rawlings-Blake. "I think if you look at the actions we took, it's clear we did take it seriously, which is why we have voided and refunded all erroneous tickets and told the public immediately that the program would be discontinued until we could vouch for its accuracy."