Got paid to deliver food today via Lyft

I arrive at this restaurant thinking a pax would get in, but the pax calls me and says “hi, i ordered this ride & there is no passenger. My brother who works there will bring you my food and i would like you to bring it to me and i will tip you.” They bring out the order and I take his food to him, the ride was $13 and he tipped me $5. It was the weirdest thing but hey i didn’t mind, it was nice not to worry about a pax for a few mins.