Four things emerge as to why he might've backed into parking by the (CPS) building vs a forward normal parking position.
1. Passersby, especially those driving, couldn't easily jot down rear-only license plate if suspicious (this mentioned most)
2. For those like myself who aren't good at recognizing cars, I'd be less likely to know the model of a car from looking at the front where only the Ford logo is present, than from the rear where it clearly says on the left 'Focus'
2016 Ford Focus Hatchback Titanium Class: Compact Car Miles Driven: 202 Fuel Used: 8.6 gallons Real-world fuel economy: 23.5 mpg Driving mix: 85% city, 15% highway EPA-estimated fuel economy: 26/38/30 (city, highway, combined) Base price: $23,725 (not including $875 destination charge)...
blog.consumerguide.com
3. A few seconds could be saved if expecting to need a quick getaway by facing car toward road instead of having to put car in reverse, back out a bit, then shift into drive.
4. If he didn't get out of the car immediately after parking, which the Gray H video suggests some bit of delay between his car's arrival and when the walk would've started, perhaps he anticipated a return walk on that 300 road for say 10 minutes and wanted to get an idea of how much traffic (like 1 car or 2 cars every 10 minutes) he might expect to encounter, and how fast drivers might be going, etc on that walk back. Getting that visual feel for activity from inside the car would be easier to do facing forward in the driver's seat previewing than through the rear mirror or window.
I compare any of those above reasons however with the opposing mindset that his least chance of car being noticed would not have been this wide-open area at all - or if decided for whatever reason it needed to be this abandoned building that a different side of the building would surely have more out-of-view hidden from others, than just backing the car in??