A top official in Florida's highway patrol has resigned over a speeding ticket controversy.

FOX's Dave Anthony reports:

Lieutenant Colonel Michael Thomas' last day will be Friday.

The number two ranking official in the Florida highway patrol resigned after an email he wrote in May surfaced, encouraging state troopers to write two traffic tickets per hour.

Thomas called that a grave error, saying supervisors could have interpreted it as an order. Earlier this month, a troop commander in Tallahassee resigned after an email from July, in which he urged troopers to write more tickets to meet that two per hour goal. That's prompted state officials to reiterate it is illegal for police to have ticket quotas.

Dave Anthony, FOX News.