Here is the $$$ motive involved, (and okay, it won't fund a modest country)...2012 was the latest info I could find. The EPA targets "violators" that have the deep pockets to pay for projects they can not get appropriations for through congress.

Of Particular note was Durham Bus company, fined 90,000 in penalties and $348,000 in "projects" for idling diesel bus engines too long. An EPA field agent "noticed" engines idling for up to 2 hours!!! My guess, since it was in Connecticut, it was the dead of winter also. Heaven forbid a diesel engine be warmed up so it can function with children on board...not to mention keep those kids warm.

http://cnsnews.com/news/article/epa-levied-record-252-million-fines-2012

http://cnsnews.com/news/article/epa-levi...-bus-contractor