Car locks acting funny.

Hi guys I have been a lurker for quiet a while now. I have a question about my 2006 acura tsx with navi. AT. I became the owner of the car in september of last year. the car came with the oem key fobs and also aftermarket remote start system. ever since i have owned the car, every time i sit in it and turn the ignition on, about 3 seconds after that all the doors lock up by itself and when i take the key out of the ignition the locks unlock. at first i thought that it was a built in feature from acura and that the locks could be programmed so I called the dealership and the service department told me that the feature was unavailable in acura tsx in 2006. any suggestions on what to do? ps. once i am in the car, the car is on and the doors are locked, if i click the unlock button on the door next to the window regulators, the doors stay unlocked the whole time.
any suggestions would be appreciated.