A state audit has revealed a significant amount of unpaid tolls and penalties. The total owed is more than $818 million. This debt is attributed to out-of-state vehicles.

The audit provides information on the financial impact of unpaid tolls. Further details on the audit's findings are available from the source.

The amount of $818 million is the total owed in unpaid tolls and penalties, according to the audit. This figure highlights the financial obligations of out-of-state drivers.