This seems to happen way too much, and I'm wondering if anyone has any theories as to what my car is up to. (I apologize ahead of time for the quality of the following images; I was trying to capture them quickly with my cell phone's camera before traffic starting moving again.)

Here is the situation: I was returning home the other night on the 101 freeway and came to a stop in heavy traffic due to some lane closures caused by some construction activity. While at a full stop, the ICE started running (which results in a 0 MPG reading on the Consumption guage), yet no energy transfer is shown taking place on the Energy screen:





I know this can happen when the system is first started in order to warm up the ICE. Yet I had already traveled five miles when this happened and the outside temperature was 72º:





Why would the ECU decide to just happily waste gasoline in this situation? This has happened to me before and watching that consumption guage sit at 0 MPG for 30 seconds or so really irks me!