Police had to be roped in to trace the family who were found on Tuesday afternoon and were being treated at a health facility.
Thabane's office said he left for South Africa early on Friday morning to seek emergency medical attention.
ABC leader and Lesotho Prime Minister Tom Thabane has announced twice that he will retire with no time specified.
The commission chair applied for an extension of the inquiry until the end of December this year.
The commission's legal team has applied for a summons for President Zuma to appear after he failed to do so last year saying he was ill, after he had requested a postponement to deal with his corruption case.
Basic Education Minister Angie Motshekga said the class of 2019 had breached the 80% threshold for the first time.
The 2019 NSC results will be announced on Tuesday 7 January, with individual results available at schools the following day.
Eyewitness News has seen a copy of a memo from the City of Joburg's head of legal Mogashoa in which he advises against impounding vehicles as it is illegal and therefore poses a risk of financial liability.
The ANC released documents in which former DA officials claimed Sheila Senkubuge was not a South African citizen in 2015 and possibly had fake identity documents.