02 accord do they lock when put in gear?

In the manual there is a relock function. where If they key is in the barrel it will not lock(prevents key being locked in side) Havnt personally experianced the no lock problem when its in gear.

I work with lots of hondas so i will seee what i can pull up.

Thanks Tedmond, I did find some info earlier.  To engage the feature you have to sit in the car with the door closed and hold the lock button on the drivers door untill you hear it click, then keep holding till it clicks again, then release the button and kill the key within 5 seconds.  To disengage it, same process except the door is to remain open.

I used to work at a Honda dealership. Wish I could help more, but I dont know much about the older Hondas.

If worst comes to worst, ask the customer if they would be ok with ignition controlled door locks. (That is if the alarm you installed has that feature)