If the Lawyers are working for part of the Award from the Law Suit it may or may not be cheaper to let Her go.
A Jury may side with Her.

If She Wins it sets a Legal Precedence and Lowe's would not be able to instruct keep their Employees from intervening in the event of a Theft and opening them up to other Law Suits.

My guess is Lowe's will settle to avoid a Legal Precedence from being created.

The other possibility is that there is already a Legal Precedence or one close to this particular incident.

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84 300D, 82 Volvo 244Gl Diesel