Ok it is 4*F this morning and I have experienced this problem before but not nearly as bad. My truck when put in park will not come back out of park. I fought it for 5-10 mins this morning before it finally let me shift into reverse which immediately engaged as always and away i go. Then drive no problems hesitation or failure of any other kind. Now I have it sitting at the back door of my shop refusing to do anything. The truck has 74,000 miles on it. I have a couple of theories. 1 low on fluid 2 bad or failing nuetral safety switch 3 bad parking pawl or sprag or both. Immediate assistance is requested. Help.