Gas switch won't work
If you can get to the cable end, try pulling on it with a pair of pliers. Or you could try a big screwdriver and a lot of muscle as a last resort.
just slide a piece of leather in with the screw driver to keep it from damageing the paint
There is a panel in the trunk that you can remove and access the cable there.
Looking for a Used Beetle in your area?
CarGurus has 376 nationwide Beetle listings starting at $2,697.
Search Volkswagen Beetle Questions
Volkswagen Beetle Experts
Related Models For Sale
Used Cars For Sale