I don’t give people rides unless I know them very well like good friends, very long term co workers etc that’s where I draw the line. I help people with things. But no driving strangers around.
I remember bizarre situation with the housemate.
I doubt she’ll touch things. Or rather hope she won’t. I’d just maintain professional relationship with her and not get into anything else with her. I think she might have poor boundaries with people (too many disclosures that early on) and sucked you right in