FUTURE ADVENTURES OF BAILEY BELVEDERE by Tyree Campbell

As the societies of Earth collapse into chaos and destruction, Bailey Belvedere, a U.S. Army Intelligence officer fighting for her very survival, steals aboard an alien spacecraft, and soon finds herself given the authority and power by a superior alien entity to intervene in various
problems in the Galaxy. Along the way she frees a world from interstellar slave traffickers, deals with an AI who becomes pregnant, inadvertently destroys a waffle house, fights against the abductors of a special child, and generally finds herself in some sort of trouble from one moment to the next.
 
Bailey Belvedere stepped onto the bridge of the alien spacecraft.
 
Immediately she was set upon by Kayana, who shoved her. “You cannot be here,” she shouted. “Get off our ship.”

Vattar held up the alternator. “Yes, this I can use.”

Bailey reached for it. “But I need that to start my jeep—”

He snatched it away. “Not for much longer,” he said. “Earth is finished. It’s already too late for The Commission to save it. We’re here by accident only.”

Bailey stood her ground. “You have deprived me of transportation,” she snarled back. “Either return that alternator to me, or take me with you.” She dropped her duffel bag. “Choose!”