A lot of Asian Secret Society types circulate this sort of document to convince others to go along with fraudulent financial schemes. They try to pass themselves off as Filipino/Cambodian/Vietnamese/Burmese agents of the Roths or fictional political actors like "The United States of North America".
It certainly looks like he attempted or faked a landing, then went up to max altitude and finally landed after 5 hours of flying. If he had continued past San Antonio, he quickly would have been in Mexican airspace so he probably had no option but to land.