Here's what I was thinking:
View attachment 92418
My crude drawing above shows 9 new spaces, but the area is probably big enough for another 10-12, and almost certainly big enough for an additional 8. (Don't let DE hire me to paint their new parking space lines!) The biggest advantage, I think, is that the wide truck corridor in the lower left 1/4 of the image is easily accessible for both northbound and southbound travelers. Sectioning off the new spaces would likely prevent a truck from blocking most or all of them. Adding the spaces directly to the truck corridor (my 2nd image below) would disrupt less green space, but would make it more likely that a truck would pull over into them and block most or all of them.
View attachment 92419
The obvious alternatives (discussed upthread) would be to expand the existing 4 spaces to the southwest (taking up some of the green space where I put my "4 plugs" text) or to the northeast (not in the image, where the almost-never-respected "hybrid only" spaces are), but I think that presents a much higher risk of ICEing since the spaces are substantially closer to the entrance, and it doesn't improve ease of access for northbound travelers.
P.S. For what it's worth, there's some kind of major construction going on in the main parking lot (between the food court and gas station) right now.
