If in the opinion of the judges a driver is for any reason unfit or incompetent to drive or refuses to comply with the directions of the judges, or is reckless in his conduct and endangers the safety of horses or other drivers in the race, he may be removed and another driver substituted at any time after the positions have been assigned in a race, in which case, the offending driver may be penalized. The substitute driver shall be properly compensated.
N.J. Admin. Code § 13:71-20.11