Maggots only feed on decomposing flesh, PERIOD. They will not feed on food, they will not feed on trash. Dead flesh.
Maggots as a form of field improvised debridement has been in use since antiquity and is as of 2008 being used in around 1000 medical centres in Europe and around 300 medical centres in the US. [1] In controlled and sterile settings, maggot therapy (also known as Maggot Debridement Therapy (MDT), larval therapy, larva therapy, or larvae therapy) introduces live, disinfected maggots or fly larvae into non-healing skin or soft wounds of a human or other animal. Their beneficial effect is two-fold. They eat the dead tissue, leaving the live tissue alone, and at the same time excrete powerfull antibiotics. An over-use of antibiotics has led to widespread tolerance, making maggot therapy attractive again. (
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There is no possible way that they grew on anything but dead flesh in the trunk of that car. They screwed themselves saying that there were maggots in the trunk.