Very interesting gameplay concept. I think I ran out of time too quickly trying to get to the energy drink and then trying to get to a building. It'd be a bit better if there were more buildings so it was easier to earn more time, or more energy drinks. Imagine sub-features such as your urine puddles causing tiny cars to crash and explode, leaving you with fires to put out.
With some more polish and features this could be a rather interesting and unique game that a lot of people would play.