Wrong.
If the Texas law is as the Florida law, then she has to appear before a judge in an immunity hearing and explain her actions to him. And if he is not convinced that she acted lawfully then he will send it on to trial.
The Florida law sets the standard of convincement at "preponderance of the evidence". If the judge finds by the preponderance that the defendant's action was reasonable, then he is supposed to throw the whole thing out, also precluding its possible use as a cause of civil damages.