The arrest - and Instagram post - comes just days after news broke of Blac Chyna and Kardashian's relationship.
Chyna apparently became belligerent during the flight and cops say that as soon as the plane landed, they met her at the gate and she tried to "storm" toward the connecting flight.
Chyna was reportedly in Austin on a layover from L.A. on her way to London.
Blac also took to Instagram sharing a meme which read #FreeChyna and she appeared to reference Rob being supportive as she captioned it: "When Zaddy holds u down no matter what".
"It was kind of scary in the beginning for me because they had to tie me up and put a bag over my face", she said.
Blac Chyna took to her Snapchat after being released from jail, asking fans if they missed her.
According to sources quoted by Entertainment Online, the Kardashians are concerned with Rob's "fragile state" with his sisters being very sceptical of Chyna's intentions ― which has led to tension within the clan.
Blac Chyna sure does know how to keep her name in the headlines. "Let me tie my Yeezys", she said, according to TMZ. Blac, 27, and Rob, 28, are believed to be now driving back to Los Angeles.
Us Weekly reported that the actor's sister, Khloe Kardashian, is mad at the reclusive actor for his recent romance with Blac Chyna.
It seems like the whole Kardashian-Jenner clan disapproves of the pair. Rob's half-sister Kylie Jenner is dating Tyga, the father of Chyna's three-year-old son King Cairo Stevenson. "It's just that because Blac's in the public eye, she got singled out more for it".
Khloe Kardashian reportedly threw shade at Blac Chyna on Twitter regarding the model's arrest, cryptically tweeting, "Damn!!"
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