Overstayed Visa for a second time by one day

I was supposed to leave China today to get my stamp and on the way to the airport this morning the cab I was in got a flat tire, causing me to miss my flight. All flights were booked and I was not able to make it out before midnight. I also overstayed on accident 4 months ago by 2 days. I went to the PSB and signed a paper of apology and everything was fine. I would like to know if I will be blacklisted now, or if I will have to pay a large fine. I am going to the PSB in the morning to talk to them and tell them what happened. After tomorrow when i talk to them, how long will they give me to leave the country and come back, if I am not blacklisted? I tried to buy another ticket for tomorrow, but they are very expensive to purchase the day before the flight and I don't have enough money after buying the ticket for the flight I missed this morning. Any help would be great, thank you.