Yes full tank.
And yes for PDI we actually built an entirely separate facility (on the same property) that ONLY does PDI. This way they have their own space, own tools, own team, all for PDI. So your truck is not waiting in line behind a neighbor's oil change, brake job, or warranty work. the guys who do the PDI are doing it every day. When they're doing an RHO.... they're not like "yippee I finally got one" it's, "ok, we know what to look for." And yes that uses some miles! the vehicles are delivered to us with a laundry list of things that have to get verified, quite a few of which require a few miles. My personal truck got to me with 17 miles, for example.