The is the area that needs more paving and is covered with Porta-Johns. I didn't look behind to see if the bump out in the curb was installed yet. With the real bathrooms open, the Porta-Johns should disappear soon.This is just east of the south end of the gas pumps. it actually is in the 'fueling' area of the rest area and unlikely to be used for people wanting to stop, shop, or eat. biggest risk would be people who fuel up and then just 'pull forward'.
I drove by several times this week (Mon, Tues, and Thurs). On Monday and Tuesday, the pumps were closed. Thursday morning, they were open and the banner was up (I suspect there was a big push to open for the NASCAR races this weekend at NHMS). I looked at the fuel totalizer on one of the pumps, and it had only dispensed ~110 gal of diesel and premium, and ~550 gal of regular, so I suspect they just opened Wed night/Thurs AM.
I wouldn't worry much about people pulling forward into those spaces - they pumps are angling them towards the building, and they'd have to turn right (south) after leaving the pumps and intentionally park there, with a long walk to the building (vs driving over to the big lot where the liquor store is now).
Or if a truck/trailer comes in and all the truck/trailer spots are taken and they decide to pull up next to the curb, blocking all the stalls. I wouldn't worry too much about tractor trailers; this has never seemed to be a huge trucker hangout (there are 2 large truckstops on Route 3A).Of course, the overflow parking is just south (left in the image) of this - but if overflow parking is in use then all bets are off anyway.
The overflow lot (brown area on the plan) is a giant dirt lot now, full of equipment and construction trailers. It'll probably get paved last.