I live just an hour away from Zion and visit the Park many times a year. Each year I look forward to the shuttles closing so I can drive anywhere in the park, stop and get out my camera. I can come for a few hours or the whole day. But that works because there are few cars in the park from late October through March. While I miss being able to use my car in the summer I'd get much more frustrated trying to find a parking space than I get having to use the shuttle. So shuttle on!