When you're posted listen to the radio and map yourself to each call that's dispatched. From the place the truck started and from where you start.
Pay attention when people are telling stories and look up the addresses. Linking a place with a story helps you keep it in your head.
You aren't FLSA eligible until you've been 12 months on the job, so they are not obligated to hold your position or give you light duty or anything.
When I was making this decision I made the rule for myself that I wouldn't work after I didn't fit in my regular pants any more. That rapidly...
This all makes me very thankful for Virginia's 14 year old age of consent. The only issue that causes is when a kid older than 14 wants a resolution different than the parent, but it can usually be worked out.