"Checked in for the Retired Racehorse Project Thoroughbred Makeover in Kentucky," Partridge wrote Oct 4. "Now for a short night's sleep before we compete at 8am tomorrow in Field Hunter."
Partridge jokingly asked if the motel's pet policy applied to her horse before heading out to her trailer to bring Blizz inside to film the check-in process.
"The person before me said that they had a dog," Partidge told the Lexington Herald-Reader.
She took Blizz inside the hotel room to stop and watch some television and take a quick photo to demonstrate the horse's good behavior.
Partridge, a riding coach who runs a training program called Harmony Horsemanship, said racehorses are "often stereotyped for being crazy and hotheaded and unruly."
"It's a positive reinforcement training program," she said of Harmony Horsemanship. "It's all about getting a calm connection first. If you have a calm connection, you can take your horse anywhere."
Partridge told ABC News that a few hotel guests spotted Blizz in the halls and some "were pretty surprised, but they all knew it was fun."
"I hope that this shows people that horses really can be quiet, calm and nice," she said.
