rp92672

I read in previous, by others, posts that my problem is possibly the park/lock cable.I have a 2001 z28 ls1, here is the problem, the key will not come out of the ignition yet the car goes into park no problem, I have replaced the ignition cylinder and key chip , everything worked fine for a week or so but now the key will not go completely into the lock position by about a hair. The alarm turns on and I am not loosing any juice to the car, just cannot get the key out......any thoughts would be greatly appreciated. Thank you