Leaving camera on the road!

Many of my good shots have something to do with the village i talk about, Kejan, located in east of Isfahan, Iran. This photo is no exception. We (me and my family) had a guest. Before reaching the village there is a qanat (in the Middle East, a gently sloping underground channel or tunnel constructed to lead water from the interior of a hill to a village below). We stopped there. I was with our guests to guide them to the village and my family were far behind, so we waited for them. It was not much after i bought my first DSLR so i was interested in long exposure photography, a field which i was interested in but did not have the equipment before. First i took few shots of our guests' car. Then i pushed my self a little further and put the camera on the road for a minute to take this shot. It was not a risk though, because i have clear view on incoming cars (if there were any) but still more stressful than those easy car photos. After less than an hour my family arrived we headed to the village.

Entry for longexposurephotogarphy contest by @juliank.

If you have any question or critque regarding the photo ask/tell me in the comments.
Thanks!