I do have a soft top, however in the winter I park on the street! So I need to have the security!
Funny, I hard top it / garage it in the winter....and soft top it / park it on the street in the summer.
No major issues last summer, although:
a) I once got in and the locker override switch was flipped, and the t-case / transmission were both in neutral, so someone had been fiddling, my guess is the neighbourhood kids out at all hours of the night while on summer break.
b) Came home driving the GT-R one day and noticed the side hood latches were undone while pulling into the driveway, checked under the hood and nothing was changed / missing / undone though.
So I looked into a locking hood latch, and the one that goes in the center isn't available for my year, and apparently the side ones tend to "pop open" in offroading situations. I haven't decided how I'm going to solve it this year.
As for people sitting in it, well...nothing I can really do about that.
The truck did come with an alarm / remote starter, unfortunately last summer I didn't get around to fixing it (previous owner said it hadn't worked for a couple months)...project for the spring I guess.
Edit: Oh, and I also woke up to the sound of rain at 5:30 am one day and realized I had left the top down....went out and frantically attempted to put it up, which is awkward due to the roof rack. My neighbour walked by with her dog and had a good laugh though
Thankfully it had just started raining, and a couple towels on the drivers seat had it ready to drive to work. Next time I'll remember to flip the seats up so they don't get soaked.