Why does my car alarm reset so quickly? (Please help, need to fix today - Saturday)?

[kayla_b_323]

Example: I'm unloading groceries from my car. I click on the remote to turn off the alarm and open my trunk. I carry bags into the house. Within seconds, I come back out to get more, and the alarm goes "beep-beep" - alarm is reset! Then I have to click on the alarm again (beep-beep!) to be able to continue unloading groceries without the alarm going off. This process continues over and over again, until I've unloaded all of my groceries, and I can reset the alarm one last time (beep-beep!). This is extremely annoying for me, and I can only imagine how my neighbors feel about it. I'm really embarrassed by all the noise they have to put up with! Why does it do this? Is there a way to set it to reset after a longer (more practical) period of time?