His UK family may continue to support them. As a Non-Thai resident the humanity aspect is something that he should have considered years ago, it is not the Thai authorities responsibility...imagine the chaos if that were the case - have a child and get to stay visa-free.
He probably didn't make any banking transactions that needed to be done at the counter.
He was reported as saying that on the occasions that he was asked about his passport by authorities he successfully bulls1tted them saying that his extension was being processed.