First, you miss attributed this. It was Philip Sheridan; a Union General assigned to occupy Texas and oversee reconstruction after the Civil War. He was less than popular and removed from his post by president Andrew Johnson for his harsh application of the Military Reconstruction Acts.

Which leads me to a much better quote.

"Fuck You! I'm from Texas."

The guy wasn't even arrested in Texas. He was arrested by the Feds... who Texans usually have no love for. Succeed is on bumper stickers here. But yeah, I admit... Texas enforcement and sentencing can be BS. So don't break our laws and we wont break you.