Police found Tiger Woods asleep at the wheel of a car at the side of a six-lane Florida road in the dark of morning, with the engine running and the right indicator flashing, documents show.
There was no alcohol in his system but his speech was slow and slurred and he did not know how far away he was from home.
The details contained in a police affidavit did little to clear up the circumstances of his whereabouts on Memorial Day morning, only to confirm Woods' statement that he had not been drinking before being arrested for suspicion of driving under the influence.
Police described Woods as "co-operative as much as possible" but said he had trouble keeping his eyes open.
The affidavit was released a day after Woods spent nearly four hours in the Palm Beach County jail on a DUI charge.
His mug shot from the jail provided a stark illustration of how much Woods' mystique has been shattered since his decade of unprecedented domination of golf.
In a statement, Woods attributed the arrest to an "unexpected reaction" to prescription medicine.
"I understand the severity of what I did and I take full responsibility for my actions," he said.
Woods has not competed in four months, and he had fusion surgery on his lower back - his fourth back op since April 2014 - on April 20 that will keep him off the PGA Tour for at least the rest of the season.
He told police he had taken several prescriptions.
According to an incident report, officers described fresh damage to the driver's side of the car - both tyres were flat, along with minor damage to the rims.
There also was minor damage to the front driver's side bumper and rear bumper, and the passenger rear tail light appeared to be out.
The affidavit said Woods failed a sobriety test on the side of the road because he could not keep his balance or follow instructions.
At one point, police said he appeared to be on the verge of falling over and one officer rushed over to catch him.
Breath tests showed no alcohol in his system. Police said Woods agreed to a urine test.
Wearing black athletic shorts and a white T-shirt, he told police he had returned from playing golf in Los Angeles. Woods had said on his website last week that he would not be able to twist his back for three months because of his surgery.
The report said Woods changed his story on where he was coming from and where he was going. His car was pointed in the opposite direction from his home on Jupiter Island.
The affidavit listed four medications, including Vicodin, that Woods reported taking. Vicodin is an opioid pain medication. The other three drugs appear to be misspelled. One is similar in spelling to Solax (a muscle relaxer) or Solox (for acid reflux). Another is similar in spelling to Etorix, a painkiller not currently approved in the US.
Painkillers are generally prescribed after such operations, and many carry warnings to avoid driving while taking them.
Other medicines, including over-the-counter allergy medicine or anti-anxiety drugs, can also cause drowsiness and include warnings about driving.
The report said Woods was "extremely sleepy" and the officer observed it was hard for Woods to keep his eyes open and to walk. In the incident report filed by four officers at the scene, Woods kept dozing off even after his initial contact with police.
"I didn't realise the mix of medications had affected me so strongly," Woods said in his statement.
He is scheduled to be arraigned on July 5 in Palm Beach County on the DUI charge. Police also cited him for improper parking.