A valet service at any place that has charging stations would be awesome, but I don't see the economics of it working out with a bunch of EV drivers mostly there for the free parking.
A multitude of 120v outlets (or even 240v) and BYO-EVSE is a great idea, but also doubtful we'll see anytime soon.
Enforcing the charging spots for active charging only would help to keep the spots open for people who need a charge and are just picking up / dropping off, but I think the other result would be that the charging stations would be hugely under-utilized under this policy. This would be a great policy for a spot with a DC quick charger, but L2 charging is just too slow for this.
From what I've seen (at P1 at least) I think there are enough charging stations and parking spaces around them that with good signage and plug-sharing practice EV drivers should be able to get their free parking AND a charge when they need it.
What LAX really needs is strong signage and posted rules/guidelines that make the following clear:
*A "charging space" is any space that can possibly be reached by the EVSEs (all spots in the two rows by the stations will do, especially if we could get some holes in the concrete wall to pass plugs through)
*You do NOT need to park in a charging space to get the free parking benefit!!!! (I'd imagine this alone would solve most of the LAX problems)
*DON'T park in a charging space unless you're charging or hope to charge - if you hope to charge leave your charge port open (and perhaps a note)
*DON'T unplug anyone who's actively charging (except perhaps if it's a Volt or a Prius 
)
*When you leave, plug in somebody who has their charge port open, even if you have to unplug somebody else (who's finished charging) to do so. And when unplugging someone who's full, close their charge port.
I think just posting these rules and relying on voluntary compliance would go a long way to keeping the spaces free for charging. But if not, it might also be a good idea to have a small fee for charging (say $5 flat). If you want to charge, pay your $5 either at a machine or to an attendant and get a "charge pass" to put on your dash that entitles you to park in one of the charging spaces (broad sense of charging spaces mentioned above). Park there without a pass and get cited/towed. This would keep out the PHEVs and those just parking near the charging stations because it looks "cute" to have all the LEAFs lined up together.
And naturally, we'd want some official approval from LAX and to resolve this nonsense about ticketing people who get unplugged. But I think even without official approval we could post some homemade signs to educate people.
