Vehicle Tracking worries

So im going to keep it short
A lady we know had her Toyota Landcruiser VX stolen on Wednesday in Montana
Im not naming the tracking company
But the company installed a second unit in the vechile
Ive seen the video where it gets taken... Quick
Probably a minute
There was a Ghost unit also in the vechile but not active
Both tracking units were jammed in less than two minutes since the ignition was turned on

Im with the same Tracking company and my Hilux had a second unit installed by them

What is the REAL recovery rate?
Or are we just fed bulls@#& percentages?

Me think its time to go old school with proper home made pedal locks etc.

Tracker signals can be blocked but the jammer needs power to work.

I had the same worries and started checking signal strength regularly when I park somewhere unfamiliar. I also keep a close eye on the tracking app to see if the live tracking stalls. Someone on another group suggested trying Jammer Master https://jammermaster.com to test for jamming—worked better than I expected. At least now I know if there's interference instead of just guessing.