House invasion ???

Check this out... I get a call from our neighbour Sean tonight to tell me that one our fish wasn't looking too good. Crappy but we can deal with it, we've lost enough lately. Then he tells me that our alarm went off this morning and when Price's called the house Anita from the sales centre answered!!!!! What the hell was she doing there ??? I don't know. But because she had set off the door sensor and the motion sensor AND doesn't know our security code they called the cops on her and they escorted her off our property. That last part I find funny. Price's had called and left a detailed message for Sean and Holli because they are one of our contacts. The thing that pisses me off is...what the HELL would she be there for ? A week or 2 before I left I had dropped off a key because with me working I couldn't take the time off to be there when they came to do the deficiencies noted during our 60 days inspection. But because of my back I was actually home when they were supposed to come but Jason called in sick that day and didn't end up coming. He was supposed to be there Thursday, I think. But then the storm hit and we were leaving so I didn't want anyone here while we were away. Plus with the alarm and everything I wasn't going to give them our pad code or security code. I'm NOT STUPID. I called from my cell a day or two before we left and with the phones still out all I could do was leave a message. I gave the typical blurt at the beginning stating my name and lot number then told them that I was going out of town and that no work was to be done until I returned in early Jan. So again...WHY THE HELL WAS SHE IN OUR HOUSE!!!!??? I am hoping to get an answer tomorrow when I call the office. Right now I can not see a good enough answer that would justify her invading our house like that. I don't know this woman other than being a sometimes snippy voice at the end of a phone. And she thinks she has the right to break into our house and violate our space. I don't think so, I am half tempted to call the police tomorrow too. Right now I just don't know what to do about this...any ideas ?