If you had missed that renewal payment deadline for the DMV, you get an automatic fee+60% fine on top and the only way to pay is via cashier's check, which you can find out by calling the most punitive phone tree/hold system I've ever experienced. I think it took something like 5 hours to actually reach a person, by which point it was after hours and they had gone home so the system hung up.

I had simply made a transcription error on the account number and the letter took 1.5mos to get back. That was a few days after the deadline.