Pretty sure it's just meant to be an additional charge they can tack on once they figure out why you're not pregnant anymore.
They can't stop women from getting out-of-state abortions, but they can criminalize using Texas roads to get there, just like the feds can get you for misusing the postal service or an electronic device to commit fraud on top of the fact that you committed fraud in the first place.
I swear some days I see as many memes about the people posting memes as I see memes from those posters.