Toyota Camry Door Lock Problem

1999 Toyota Camry, 150000 miles. I recently gave my car to the mechanic because 2 minor issues 1) my driver side door handle (the plastic frame and handle) broke 2) my inside light was not turning on. He replaced the handle only and glued the plastic frame that goes around the handle with glue and said the part only comes with the handle and not the entire plastic frame. He said for the 2nd problem he could not fix it since replacing the bulb did not work – he would have to see if it involved electrical wiring. I told him not to do anything else since he would charge me by the hour to figure out what the electrical issue was. When I got the car back the automatic door lock (I do not have keyless entry) did not work when the car is turned off. It will lock all the doors as long as the car is on but does not do anything when the car is off. This was working fine before I gave it to him. He says he did not do anything and it may be a coincidence. I am not sure what exactly happened and it may or may not be a coincidence but I need to know what may have caused the problem. Any ideas? Thanks.