A man and his adult step-daughter — with whom he said he had a sexual relationship — were found parked illegally in front of a Deltona elementary school with drugs, authorities said.

On Aug. 25, two deputies saw Barry Thompson, 52, attempting to hide a dark object behind the front passenger seat, which his adult step-daughter Emily Luxmore, 29, was sitting in, authorities said.

The deputy asked him to show his hands and step out of the 2004 gray Toyota, which was parked at the entrance of Pride Elementary School in violation of two no parking signs, the Volusia County Sheriff's Office incident report said.

The deputy asked him why he was at the school, why his pants zipper was open and what his relationship was to the woman in car.

"Thompson stated the female was his 'date' and is his step-daughter. Thompson advised he and step daughter were in a sexual relationship and had come to the school because they were trying to keep the relationship a secret from his wife and step daughter's mother," the report said.

A search of the car revealed a green "Koozie" behind the passenger seat which contained a white paper towel with 56 pills identified as hydromorphone pills, the report said. When asked if he had a prescription for the pills, Thompson said no, the report said.

"Thompson stated he was on 'federal pre-trial release' out of Tennessee and as a condition was not supposed to possess any prescription medications," the report said. But a check didn't show any record for pre-trial or probation out of Tennessee.

He told authorities that he has back pain and bought the pills earlier for $600 in the Orange City area, the report said.

Thompson was arrested for trespassing on the grounds or facilities of a school and trafficking in hydromorphone more than four grams.

Luxmore was issued a trespass warning and released. The car was towed.

It wasn't immedately known if they had attorneys.