Not much use re insurance, although you've made it hard for the thief to break in, which is in your favour, legally speaking. Better than leaving the keys under the wheel arch.
Was at Perranporth and a guy had his van broken into and tools stolen using a keysafe, they're easy to pick, check videos on youtube. The crimbos also get to keep your keys.
I use an Aquapac, have done for decades. Take off the toggle and tie around the waist underneath your wettie, so it sits in the small of your back. You can opperte the key without taking it out of the pouch.