All other times are OK. The rush hour with Granada is around 2pm and 5 pm. Driving within Granada at anytime of day is fairly slow. It is best to go directly to the place you are staying and not use your car while you are in Granada.
Such a postural imbalance may lead to the formation of muscle knots or tension knots in the neck or upper back. Given below is some information on what causes knots in neck along with the treatment options.
Vang says: pinched nerve in neck cause neck pain, symptoms of pinched nerve in neck are headache in the back region of the head, delayed reflex response, pain behind eyes etc. reference http://www.buzzle.com/articles/pinched-nerve-in-neck-symptoms.html. Find some more useful details on given reference.