By Ian Bush

FALLS TOWNSHIP, Pa. (CBS) — A violent ride in a pickup truck Monday left a Warminster woman in critical condition. The driver — her husband — is being held on charges including aggravated assault and DUI.

Four beers and a couple shots of tequila in an hour made a marital spat about money matters that much worse, according to investigators.

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After tossing back the booze at a bar, Falls Township Police say 31-year-old Andrew Ryan of Tulip Road in Warminster got behind the wheel of his F-250 with wife Robin in the passenger seat.

Witnesses told police the truck was swerving on Lincoln Highway when a woman fell out and was run over by the landscaping trailer it was towing.

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The affidavit says Andrew admitted to knowing Robin hadn’t fully closed her door; he told officers he didn’t know he’d struck her but sped off because, he said, he was ‘drunk.’

The wife was left with brain swelling and a broken thigh bone.  She remains in critical condition.

Ryan is behind bars in Bucks County Prison awaiting a preliminary hearing next month.