SEATTLE -- Former WSU and NFL quarterback Ryan Leaf is expected to turn himself in to authorities in Texas Thursday after he posted a $45,000 bond in Bellingham for drug and burglary charges.

A KIRO 7 news producer spotted Leaf at Sea-Tac Airport Wednesday night as he waiting to board a flight to Houston, but he had no comment.

Leaf was arrested by customs agents Wednesday as he returned to the United States from Canada, said James Farren, the district attorney in Randall County in West Texas. Legal assistant Jennifer Bonstein said Leaf declined to waive extradition during a hearing Wednesday afternoon in Bellingham, Wash., about 90 miles north of Seattle.

Leaf's attorney in Washington told the court Leaf would post the bond and return to Texas by himself. Leaf also was to come back to court in Whatcom County on July 16, Bonstein said.

Bill Kelly, Leaf's attorney in Texas, said his client was returning to Texas to turn himself in by a Thursday deadline.

"I assume when he was crossing the border, they picked him up," Kelly said.

The ex-Washington State University and San Diego Chargers quarterback is charged with burglary to a habitation, a second-degree felony. Leaf also was indicted on seven counts of obtaining a controlled substance by fraud and one count of delivery of a simulated controlled substance.

Leaf coached quarterbacks at West Texas A&M in Canyon, where the indictment was returned in May.

Leaf, who resigned from West Texas A&M after being investigated for drug crimes in November, was working in British Columbia, his attorney said. Kelly, a former head football coach at the college, said Leaf "has been to rehab and successfully completed it."

Leaf, who coached for three seasons at West Texas A&M, spent four seasons in the NFL after being chosen with the No. 2 pick in the 1998 draft by the Chargers.

In his NFL career, which included stints with the Tampa Bay Buccaneers and Dallas Cowboys, Leaf had 14 touchdowns and 36 interceptions. He was better known for outbursts directed at teammates, coaches, fans and reporters.