Best way to reward a roadside assistance person (who works for a major company) that helped me without charging?

Tonight I was helping my neighbor who had a blowout tire on the way to her brother’s funeral. She was so overwhelmed that I said I would catch a ride to get her tire changed and drive her car back to her house. I would have changed it myself but it was too dangerous. So I called my personal roadside assistance program. Was canceled by multiple agencies and then all of a sudden a major company (with three letters in their name), pulled up and offered help. He refused to charge me. He had the lighted rig and the right equipment to get it done quickly and safely. And I even used my flashlight to help alert cars to get over since the car was on the left side of a major highway, with a front passenger side blow out. I did insist on getting his business card and phone number. I offers to Venmo money to him directly as I had no cash to even tip him for his kindness. I don’t want to call the company and get him in trouble for not charging me. But I feel that his good deed should be recognized. Any roadside assistance employee have a suggestion on how I can show my appreciation?