Car alarm goes off randomly after replacing the starter?

Yep, so when they put the car in the air to replace the starter it flexes the car slightly, this can cause the door switch to be right on the edge, so what you want to try is to put a small piece of cardboard over the switches (all doors) and then shut the door, this will keep the switch in as to not trigger the alarm if this is the problem. I have included the switch in the image below, so you know what I am talking about. Check out the images (below). Please let us know what you find. We are interested to see what it is.