My car has been sitting for about a week without being started. We just bought it and it needs to be taken to a mechanic to be checked out so we were going to drive it on a trailor to do that. THe key went in the ignition fine but will not start and the key will not come back out. The car didnt come with a manual and we have no idea if this is common. Maybe a security thing or something else. Any advice would be helpful.

98 Grand Prix gps