Weeks, wanted for allegedly exploiting her elderly grandmother, fell from the moving truck her husband was driving Tuesday morning.
As Jennifer Weeks lay on the side of I-15 - alive but badly hurt - Todd J. Weeks kept driving.
"I don't think he even gave it a second thought," said Millard County sheriff's Sgt. Roger Young. "I think he just panicked."
Now Todd Weeks, 37, is facing another felony charge - this time for what the sheriff's office says is an abuse of his wife. He's in the Millard County Jail on $3,500 bond. He also has a $10,000 bond from Weber County he will have to post before he can be released.
Jennifer Weeks, 39, was in serious condition Thursday at LDS Hospital with two broken knees and road rash.
The couple are charged with a second-degree felony count of exploitation of a disabled or elder adult. They are accused of financially exploiting 87-year-old Louella Castle of Ogden, Jennifer Weeks' adoptive mother and biological grandmother. Police say the suspects unlawfully obtained power of attorney for Castle, who suffers from Alzheimer's disease, then took more than $200,000 from her.
Jennifer and Todd Weeks failed to appear for a scheduled court appearance Monday in Weber County.
Shortly after 6 a.m. Tuesday, the pair were traveling north in a Ford F150 pickup on I-15 through Millard County. Near Holden, about 13 miles north of Fillmore, Jennifer Weeks dropped from the truck's passenger side.
Young arrived at the scene with a deputy and an ambulance. The injured woman, Young said, told him she was asleep in the vehicle and the next thing she knew she was falling from the truck.
"She didn't know how she fell out. She just did," Young said.
As he attended to Jennifer Weeks, Young received a call saying Todd Weeks was at a service station in Scipio, 14 miles to the north.
Todd Weeks told Young he reached for his wife as she fell and thought he felt the truck drive over her.
"I said, 'Why didn't you stop?' And he said, 'Well, I just couldn't handle it,' " Young said.
Young said the suspects told him they were on their way to Ogden to turn themselves in. Jennifer Weeks' sister, Ronda Fisher, said she doubts that's true.
"They shouldn't have left town in the first place," Fisher said.
For leaving his injured wife, Todd Weeks was booked into the Millard County Jail on suspicion of abuse of a disabled adult, a second-degree felony.
He also was booked for driving on a suspended license, leaving the scene of an accident and failure to render aid at an accident.