Exclusive Guatemala Coverage

I woke up at 4 this to get on a plane. Got into Guate about 11. Now I'm waiting for my bus to Xela at 2:30.

Reports indicate:
It's really smoggy. Like, instant asthma smoggy.
Creative attitudes about driving abound.
There's a guard at the bus station with a pump action shotgun.
I got a great shoe shine for Q4 ($.50). The guy was starting to gesture Q3 but then added on another finger. I let it go....This time.
They say in the guide book not to eat "street food". Problem is, they don't define that term. Most of the food places are, well, not on the street exactly, but damn near it. ¿Clarification, Rough Guide?