Omg I feel guilty!

I wasn’t thinking. I pulled up to an empty gas pump that hadn’t been used and started pumping gas for a moment until I realized I didn’t pay for it. I feel guilty because what if the person is just as poor as I am and really needed that gas. It was only $5. I panicked and drove away. Do you think I will get in trouble for it?Do they take pictures of liscense plates? I tried getting out of there fast but some guy was tryin to take a left when he couldnt. So I had to wait behind him which coulda given someone time?… I don’t recall the pump number or know what to say if I went back to try to explain. … ??? What do I do. 8 can’t afford to be in trouble right now