Texas towns extort cash to avoid CPS

I have heard stories of tourists in Mexico having to pay ransoms to crooked cops to get out of town. According to a New Yorder story, it happens in Texas and it is legal:

Russell, who moonlighted locally as a country singer, told Henderson and Boatright that they had two options. They could face felony charges for “money laundering” and “child endangerment,” in which case they would go to jail and their children would be handed over to foster care. Or they could sign over their cash to the city of Tenaha, and get back on the road. “No criminal charges shall be filed,” a waiver she drafted read, “and our children shall not be turned over to CPS,” or Child Protective Services.

“Where are we?” Boatright remembers thinking. “Is this some kind of foreign country, where they’re selling people’s kids off?” Holding her sixteen-month-old on her hip, she broke down in tears.

Later, she learned that cash-for-freedom deals had become a point of pride for Tenaha, and that versions of the tactic were used across the country.

I had heard of seizing cars from drug dealers, but the CPS angle is a new one to me.