Last week I took my car to the paint shop to get some scraches fixed from this guy that backed into me. After I picked it up I went to school and locked my doors. when I got out of class I tryed to unlock it from the drivers side and it felt like the lock was striped on the inside and it wouldnt un-lock. I tried the passenger side and it opened right up. Now the driver side lock wont lock or un-lock from the outside. Any suggestions to what might have happend?