I would've bought that homeless man whatever he wanted on the menu.
This is disgusting, people are so selfish, the video poster should definitely contact corporate, not for a refund but to also threaten them to make this video go viral (which is extremely possible with just a few hundred dollars) if they don't assure the video poster this type of behaviour will never happen again in that specific franchise again.
What is wrong with people these days, sure some homeless people put themselves in the position but you can't just judge a book by its cover, they obviously instantaneously assumed this man would begin begging or food or money by the looks of it, that's just wrong.