Sounds crazy but maybe this was the Texas law that was enforced
Gambling Promotion
Tex.Pen.C. 47.03 covers gambling promotion. It is also a technical statute and you should read it for any and all offenses and exception, but mainly that statute makes it an offense to (1) operate or participate in the earnings of a gambling place (defined as “any real estate, building, room, tent, vehicle, boat, or other property whatsoever, one of the uses of which is the making or settling of bets, bookmaking, or the conducting of a lottery or the playing of gambling devices.”);
(2) engage in bookmaking (defined as either receiving and recording or to forwarding more than five bets or offers to bet in a period of 24 hours; receiving and recording or to forward bets or offers to bet totaling more than $1,000 in a period of 24 hours; or a scheme by three or more persons to receive, record, or forward a bet or an offer to bet.)
Gambling promotion is a Class A Misdemeanor punishable by up to a year in jail and a fine not to exceed $4,000.