Of course it was wrong. The woman was in distress, after a fashion. The tow truck driver had no legal responsibility here that I can see. But he had a moral responsibility. It is the decent thing - and dare I say the Christian thing - to try to help people who are in distress.
Gays who walk into a bakery are not in distress. This woman was in distress.
But there is the payment angle. The tow truck driver had a justifiable concern that he wouldn't get payed. So get the money up front, then make the tow.
Or just make the tow, and keep the car until you get payed.
Aw, you’re being sensible. That will never fly around here.
I put myself in that woman's place and would have been extremely upset, angry but overcome with stress of getting myself out of a potentially dangerous situation, not just traffic but trusting anyone who comes to help.
I've been in her shoes, and I shudder to think someone wouldn't help me because of my political views (if they were obvious). Often I've had to put trust in strangers that I would worry about my family trusting strangers like I have.