The whole mix-up is actually kind of understandable. As you can see in the clip (shown above), the actual car involved in the chase (a black Toyota Camry) drove beneath an overpass at the same time as another black sedan (a black Chevy Impala). From above, both cars looked almost identical, which explains why the camera operator got a bit mixed up when the Impala came out ahead of the Camry. The anchors didn't miss a beat and continued to speculate about why the driver pulled into the gas station until it's brutally obvious they had the wrong car.
A clip from the ABC7 coverage of the chase obtained by Jalopnik is even more hilarious, as the two anchors endlessly speculate as to why the driver that got out looks very different than the one they were following.