What's the difference? If you pull in straight and have to back out when you leave, or back the car IN when you arrive. Either way you have to back up once. Do it on the front end and you're set. It may even come with the advantage of being earlier and/or daylight when you back in.
The differences I think of are you have to pay careful attention to vehicles on your sides at angles that aren’t real great, and that you may find yourself kittywhompuss and have to pull out and back in. At least once. OTOH, your point about the pull through is well taken, and there isn’t ALWAYS a a car on the left and right.
I’m going to give it a try. I also take the point about avoiding crowds - I’ve been crowd averse for quite a number of years. Besides terrorist attack, I don’t like the feeling of being out of control that you get - just occurred to me that the out of control feeling is probably exactly what the occupiers and anarchists DO like about it. I don’t mind the symphony or the ballgame that much, but the idea of going to an all-day rock concert makes me throw up a little bit in the back of my mouth.