That's fine. Recommended distance is still more like 10', and what I said about the viewing experience still applies.
I am not sure the thing would have fit in my car, even without the box. But, even if it had, doing this would likely have voided my warranty and/or service contract.
If I were moving big stuff around every couple of weeks, I would too.
10' is crap. Sitting farther back makes screen smaller, defeating purpose of bigger screen. Obviously, you can sit so close, that you can't see the entire screen. That would be stupid. And sitting so it fills your eye-holes, means edge content is really registering on your peripheral vision.
But the sweet spot is closer than 10'. I watch my 42" from 5' just fine. The screen is still smaller than my total optical feed. For video games, it means I can see the pixels than say a guy is about to snipe me. Farther back, and I can't see that detail, and bang, I'm dead.
On the out of box experience, I was punning a bit. I assumed you bought a TV you thought would fit in your car, only to be surprised that the box was much bigger, and thus would not fit in your car. Versus, buying a TV that is much bigger than your car can handle.
It's not like you're dumb or something. You simply hadn't planned out the logistics when you went shopping. I have also had to call a friend to bring home a TV (though I had brought the bigger, but not big enough vehicle).