Dukes told ABC News he tried to explain that his doctor knew where he was, but the guard responded, "Well I don't care what they told you. As far as I'm concerned, this is hospital equipment and you're attempting to steal it."
"I was livid, I was irate," Dukes told CNN. He said his boyfriend began recording the encounter.
The police department said in a June 18 statement that the three men became involved in a "verbal dispute" with the security guard.
Police arrested all three men and charged them with misdemeanor disorderly conduct. Two of the men were also charged with misdemeanor resisting arrest.
Dukes told CNN that officers took his emergency inhaler. He said his IV was removed, though not by a doctor. Police said in the statement that the IV was removed by medical personnel.
Freeport police officials released a statement to ABC News saying, in part, "Our investigation revealed that at no time did any doctor or nurse give that patient or any patient permission to leave the hospital while still hooked to an IV machine ... It was determined that he was likely not trying to steal any of the property. But the charges were supported for disorderly conduct with their actions toward the security guard."
Dukes said police eventually took him back to the hospital while he was still in handcuffs.
FHN Memorial Hospital declined to comment on the case to media, citing confidentiality laws.