We had an engine issue in our truck one trip and dealership didn't have space to unhook from FW. So, we limped a mile to Wal-Mart and dropped 5er. Took truck back to shop. They did get it fixed that day, but if they couldn't we would have been in lot all day and night plus until fixed. They told us it would be 5 hours if all went well but if bolts broke due to being on exhaust.....Point is sometimes there are reasonable explanations for being there and yes we had slides out and genset running for AC.