They were recorded on a nearby store surveillance camera around 10:30 p.m. That video capped off an evening of strange behavior, including a late-night stop to buy a corn-dog that was paid for, but left on the counter, and a fall in a market parking lot.
When she was last seen, Smiley got directions to the highway from an elderly couple, and then headed in the wrong direction.
Smiley's actions seem to suggest she was disoriented as she headed farther and farther from where she was supposed to be.
Her minivan, with the doors open and no one inside, was pulled from the water on a Puget Sound beach Sunday.
Police wouldn't comment on Smiley's reported troubles with alcohol addiction. On Tuesday Mealy told ABC News, "This woman had no enemies, no history of domestic abuse and no spousal abuse. From all indications she was a very stable woman, a very loving woman."
Mealy was baffled how Smiley's car ended up in a pond at the end of a tiny road through the woods.
"I couldn't even find the access road, and it was light out," Mealy said. "You really have to know where it is. It's the kind of road you don't want to take because it's so steep and narrow."
"It's very rare for someone who doesn't know the area to wind up where her van wound up," Mealy said.
Smiley and Azriel set out around 5 p.m. from their home in Silverlake, Wash., to Smiley's stepfather's home 120 miles south in Castlerock, Wash.
Investigators found Smiley's wallet, ID card and credit card in the van, but no purse. There were also no overnight bags in the van, despite the fact that Smiley and her son were planning to go away for the weekend.
"We don't have a suspect because we don't know if it's a crime," said Mealy. "Our options are open. We're not saying it's foul play and we're not saying it's not, and we're not saying she didn't voluntary leave."
"We can't explain what the hell she was doing out there, if she was even out there at all," the lieutenant said.
Divers searched the waters for a second day Tuesday, but found nothing.
Asked whether it's possible that they got lost in the nearby woods, Mealy said that there are too many houses with porch lights on for them to not have been able to get help.
"I don't have any freaking clue what happened."
Almost two hours after she left her home for the trip to Castlerock, Smiley called Simmons, who was supposed to be rendez-vous with them in Castlerock. Simmons said that during the phone call Smiley asked him to bring her cellphone because she had accidently left it behind. Smiley also complained about the heavy traffic in the area, which Mealy says is common for the time of day.
Her bizarre journey is documented by a series of surveillance cameras. Smiley and her son were spotted just before 8 p.m. at a small mom and pop shop, the Handy Pantry Food Store in Olympia where surveillance video captures them making a purchase.
At 9:08 p.m. Smiley and her son pull into the Martin Way Diner where they ordered a corn dog to go. Surveillance video from the diner caught Smiley leaving the restaurant after paying, tripping and falling in the parking lot, and then getting up and driving away with her son.
They never returned for the corn dog.