Keeping with my recent theme of parking issues, "...according to figures developed by University of California at Davis professor Mark Delucchi and updated by (Donald) Shoup to account for inflation and the number of motor vehicles owned in the United States, in 2002 the subsidy for off-street parking alone was between $127 billion and $374 billion. This figure is roughly the same amount as our nation’s Medicare or national defense budgets—without including subsidies for the free on-street parking that exists on most urban streets." [Next American City] [Emphasis Mine]
So there you have it, some of the cost of socialized automobile parking care. Something to think about when you hear excuses from government officials about there being no money for bike rack spaces that cost 40+ times less than a surface lot car space and 300+ times less than an auto garage space in a tiny fraction of the land use.