From what you said in your story, those "tech's" seemed to have set up a plan, and may have "cased" that young lady. She probably leaves and returns to her residence at about the same time every day, and may have set herself up as a victim of PROFESSIONALS.
Tell her to vary her time of leaving/returning, and to vary her route to/from work and her residence. Suggest that she should make every effort to get into her car (somewhat safe), quickly start the engine and LEAVE as soon as possible. Tell her to have her car key ready to insert into the lock of the car door....and as she exits her vehicle to step into her residence, switch to her house key at the ready when she reaches the half-way mark.
There ARE professional car thieves who have lists of certain cars that are highly desirous. Those "tech's" may have spotted her Mustang well in advance of what took place, and figured out what her "routine" was within just a couple of observation times.
Also, in the same scenario, she COULD have waved to the "tech's", and maybe even yelled to them that she would be right back.....instead of stopping and compromising herself. Apparently, those "tech's" hadn't called her to set up an appointment, and they were TOTAL STRANGERS, even if they DID look "official".
Somewhat off topic, but of interest, especially to females: Several years ago, a young lady was out for a walk during the evening hours. She she passed by a clump of tall bushes, a man jumped out, caught hold of the lady and dragged her into the bushes. He told her that he was going to rape her, and she (at first) acted like she would comply, but her BRAIN was setting up a plan. She figured that she needed a WEAPON to use, but she didn't have anything in her purse....other than her wallet, some make-up, a small pad of paper and a SHARP pencil. The pencil was her weapon! As soon as the suspect turned slightly, she reached into her purse, withdrew the pencil, then made her move by jabbing it into his face. When he lifted his hands to his face, she ran as fast as she could and saved herself. She ran to a local liquor store for safety, and called the police. The bad guy got away, but she had used quick thinking and an object that doubled as a "defensive weapon". Had she been holding her house keys in her hand, that might have sufficed as a "defensive weapon"....but the pencil was great! (Three days later, the bad guy was arrested....with an infection just below his left eye....maybe lead poisoning?)
that such advice might be warranted in one's own front yard.
It gets dark real early this time of year. He was driving a white van instead of the big brown trucks, came to the wrong door (we have it blocked off for insulation right now), and then traversed our breeze porch getting to the other door when I turned on the porch light. All I saw at first was some unidentified person bumbling around on our porch. What finally relaxed me was the electronic signature thingie that he was carrying along with the package.
