How come I cannot find Red Bull Cola in my area?

That area is Homer Glen, IL (USA) but last night at 12:00AM in the morning I drove to speedway but it wasn't there? I was expecting it to be there. I'm really interested in trying it. There are these stores by me. Jewel, Jewel Gas Station, Speedway, Walmart, Target. Well that's all of them really close to mai house. Thanks a lot if you can help :)