WTF just happened with me!!!

I was going home walking from the LAD square to the veterinary square road... So I was walking on the side walk next to a car parked, so before I reached the car, the car moved a little, then I had earbuds in both ears so I didn't understand, I thought the car had started, so I reflexively looked at the side of the car while walking so that I wouldn't get hit, then while looking at it I looked inside the car because the car didn't move from its place but I was moving so I saw a boy on the driving seat and a girl, she was bent down, I got that thing in my mind but I didn't realize it after seeing it, but in that process I made eye contact with the boy and it wasn't even an instant one, it went on for a while like 1-2 seconds.... I immediately looked ahead and started walking... within 1 minute those car people came next to me with the car and called me by honking (my ass got scared) so I said what happened..... The girl says "did you see anything" I said "no nothing at all, why?" In that time the boy picked up her purse from the front and gave a note to the girl, that girl offered that note to me, it was a 500 rupee note, she says "don't tell anyone anything". I said "who am I to you that I will tell anyone anything". Then she started closing the window.... I immediately threw the note inside her car saying I don't want it but she threw the note out again and the boy drove away at speed. I was just standing on the road watching their car go and that note is lying on the road, then I picked up the note, started walking and dropped it into the donation box of a temple nearby because why disrespect money .... But the point is, now I am feeling very embarrassed and I don't even know why, like not because I saw that girl giving a blowjob but the money scene doesn't feel good to me at all 🫠 What would have you done if you were at my place??