There are key chains, hotel key cards, bus head rests, free meals, journal ads, promotional talks, and websites.

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It also takes note of whether the bus' turn signal is on and can prepare a green turn arrow if the bus needs to head left or right.

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It's a situation Maldonado said she never imagined when she boarded a bus last week to head back to the United States after attending her aunt's funeral in Mexico.

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