Wrythe... but what did you see when he delivered the pizza... thats right that video doesn't exist.
The Car Dealership has had countless chances to provide that, and they kept blaming Ernie not being there to get the videos etc.
Tipping isn't mandatory for delivery guys, but it is mostly done out of respect etc, so we can only go on the words of the delivery guy and what he explained happened and that is they gave him all the money in 2 $20s and 2 $5s, now if they knew they would be getting changed back they wouldn't have gave him the extra $5 and ask for change. They didn't.
Of course they said he ran off quickly, somehow I doubt that.