i dunno about where you live, but in texas if someone comes on your property like that to vandalize or rob you, you can shoot AND kill them if you have to. a man on a ranch woke up to find people stealing his pickup truck, he snuck around the end of the drive with his legally owned full auto ar-15, it took them awhile to get the truck started and as they came down the drive he walked out in front of them and held his hands up for them to stop, but they sped up and tried to hit him, he shot the driver dead in a hail of 5.56mm lead. even if its soemthing as innocent as TPing your house, its still criminal mischief and you COULD shoot them if you wanted to...
anyways, get the X5 camera or whatever that one is on the popups, i think you can get a motion sensor...if nothing happens that night, just rewind the tape and record over it again, repeat til something happens...
the only things i had done to my car was someone poured diet coke all over the top on one occasion, i found out who did it and ****** kicked his ass badly, no joke. then (i dunno if this is vandalism cuz it was my friend, just a funny prank) he took some stinky ass s*** and blood catfish bait nuggets and stuck 2 of them on the intake for my a/c so wehn i turned it on i got a blast of stinky air