Police say Brian Drone was given a $25 traffic violation ticket in a strip mall parking lot Friday.
Drone told KUSA-TV that he was out for a "joyride" in Arvada with his horse, Cricket.
Sgt. Jeff Monzingo says the citation was the first he'd seen in 15 years of working in law enforcement.
Police say deciding what to do with the horse was a "tricky call" because "you can tow a car" in typical drunk driving cases.
A stable owner eventually offered Drone and his horse a ride home.
A phone number listed for a Brian Drone in Arvada was disconnected.
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