The simple reason is that most of these other forms of glass are treated with chemicals, so they have a different melting point than bottles and jars. This is important for improving the durability of your car windshield, but makes disposal a challenge. Here's a few options for non-container glass:
1. If the glass isn't broken, consider reuse for your mirrors, ceramics, drinking glasses and cookware. They'll likely be accepted at a local second-hand store.