Hi Karena,
I would not leave a furled jib on the boat unattended. It doesn't take much for the wind to get a part of it to start to unfurl and start shaking the whole rig apart or flip the boat. Also, the stock jib is not made of UV resistant cloth, so it will be in shreds by the end of one season.

Perhaps you could have a wire sewn into the luff and hoist the jib without the hooks (like a Hobie 16 jib)?? Or skip the jib and get a small spinnaker...

The 5.0 is a great boat.

Good luck!

Steve
Hobie FX-1
Sail #211