OK - read this before you disconnect your charger from your house, or tow your eGolf to the dealer. My cable (home charger - Clipper) was also stuck to the car - wouldn't let go, I tried everything. Car would not go into neutral either, so towing would be a challenge. Solution: go to Home Depot, get a 90 degree pick. Husky makes it, it's in a pack of 4 different picks, cost $6. (Get some WD-40 too, if you don't already have it) I got a chair to sit in, with a flashlight, and you take that 90 degree pick, and turn it on its side, and stick it in above (at the top of) the charging cable. There is a little metal pin, about a quarter inch wide, that is sticking out, preventing the cable from releasing. Take the pick and push IN (toward the car). You might find a tiny amount of resistance - you are pushing that pin in against a solenoid. Voila, the cable releases, and you should be good to go. BUT before you happily motor away, you should spray that pin with WD-40. The issue, I suspect, is that the pin has gotten gummed up with dust/dirt, and gets stuck. So in my case (and maybe yours), it was stuck in the OUT position, preventing that cable from releasing. Might be a good idea to periodically squirt that thing with WD-40, just to be sure.
Good luck.
Dan
2015 eGolf SEL