But that story was fake, Burlington County Prosector Scott Coffina told reporters Thursday.
McClure and her boyfriend Mark D'Amico then set up a GoFundMe page to help Bobbitt, raising almost $400,000 from well-wishers.
The original GoFundMe campaign started by the couple in November 2017 claimed that Bobbitt, a homeless drug addict, spent his last $20 to fill up McClure's gas tank after her vehicle broke down on I-95 near Philadelphia. Instead, all three worked together to come up with a "feel-good story" that would inspire donors to give money.
Coffina said it was all lies.
Kate McClure, 28, and her boyfriend, Mark D'Amico, 39, from New Jersey in the USA have been charged with conspiracy and theft by deception according to American News outlet ABC.
Bobbitt was arrested Wednesday night by USA marshals in Philadelphia and remained in custody Thursday on probation detainers and a $50,000 bond.
Mr Coffina said nearly no part of the tale was true.
Last week, investigators with a search warrant went to the couple's home in Bordentown, New Jersey, and seized a 2015 BMW, several Louis Vuitton bags and "anything else of value", the Post reported.
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In August 2018, Bobbitt filed a lawsuit against the couple after he alleged they took over half the money raised for themselves, but McClure and D'Amico have since denied the allegation. D'Amico responds: "Dude I just thought about him!".
Coffina added the trio may have gotten away with the scheme had the dispute between Bobbitt and the couple not become public.
It's not exactly clear what happened with the money, though Bobbitt's attorney has said it's all gone.
Just a month later, police launched a criminal investigation into the missing funds and raided the couple's home where they seized a BMW vehicle and other belongings. They said they used their own money to buy the auto. A lawyer for the couple said in September that Bobbitt received about $200,000 from the fundraiser.
D'Amico has said Bobbitt spent $25,000 in less than two weeks in December on drugs, in addition to paying overdue legal bills and sending money to his family.
"While this type of behavior by an individual is extremely rare, it's unacceptable and clearly it has consequences", GoFundMe said in a statement to TIME. "We are fully cooperating and assisting law enforcement officials to recover every dollar withdrawn by Ms. McClure and Mr. D'Amico".
The couple declined to comment on the matter. A message was left with a previous attorney of Bobbitt's.