You might try across the bridge in NJ. Int. 295 parallels the NJ Tpk. and is free. There are a few cg's off RT 40 close to the Delaware Mem. Bridge which is just outside of Wilmington. Weather is supposed to be in upper 90's this weekend so you will definitely need A/c. BTW don't even think of going anywhere near Phila. as Int.95 is closed to all trucks, MH, and pickups with trailers for the duration of the DNC. Also if doing a motel look around Rt. 40 or Rt. 13 in Newark, which isn't far from Wilmington and has some low cost plus all the chain ones near the Wilmington Airport. Good Luck!!
Dennis & Mary Ann(Directress of Navigation & Planning), 2013 Storm 32BH