I'll skip the insults and go with facts backed with references. Link to this statute below. You can do your own research on the 49 other states.
Sec. 545.365 - SPEED LIMIT EXCEPTION FOR EMERGENCIES; MUNICIPAL REGULATION. (a) The regulation of the speed of a vehicle under this subchapter does not apply to:
(2) a police patrol;
https://statutes.capitol.texas.gov/DocViewer.aspx?DocKey=TN%2fTN.545&Phrases=545.365&HighlightType=1&ExactPhrase=False&QueryText=545.365