Makes sence but why would disconnecting the battery work once but 30 mins later it not want to start again. It does sound like the starter relay is clicking but normally a bad connection or a weak battery will still lead to some noise from the starter. The earlier start sounded as strong as ever which also leads me away from a bad battery connection. At this point it's looking like I will have to get a tow. But knowing my luck it will start once in the morning and leave me stranded somewhere else