Noises in a Super Shuttle

So I took a Super Shuttle home from the airport today and since those rides are so extremely silent I started to notice a lot of sounds. First off, people's phones making noises. Some people had their phones on vibrate, others had their ringtones on--beeps or whistles. Then, one man had his music on (headphones though) quite loudly and everyone in the van could hear it. It reminded me of someone on the airplane who didn't put headphones in at all! But something that really caught my attention was when we stopped the car on the side and he put on his blinkers as he plugged in addresses. For the first time I felt the beeping of the clicker slow as I focused on it. Instead of the continuos clicking, it instead felt like the click would start and disappear, start and disappear, like the think was clicking completely off. It was a whole new way that I was looked at it and it completely entranced me. That or I was just sleepy from my flight.