What's Up With That?

The other day on a relatively conservative Twin Cities AM radio station, which by the way I seldom listen to, the 'jock went on a tirade and rant about transit and public transportation, particularly the bus system and subsidies. It was his opinion, irrational as it may be, that all of the operating and administrative costs for the bus system should be covered and offset by the ridership. He said if that meant that a one-way fare would cost $10.00 or more, the bus riders should pay for it, period...

What's up with that, given that every inch of every mile of every highway is 100% subsidized and completely paid for by the taxpayers?