The estimated time to remove
The estimated time to remove the plate by a professional shop is 15 to 20 minutes with the appropriate power tools and a lift. The two different types of security fasteners make it a challenge. If you wanted to use a single tool to remove the shield I could only see a grinder removing them both successfully. if the noise from using a grinder isn’t a big enough deterrent to a thief then Im sure one can imagine how long it would take to lay on your back under a car and grind down 14 security fasteners and still have bolts left to deal with on the front of the shield. I don’t see this happening in 3 or 4 minutes.
The risk of getting injured from the grinder and added risk to getting caught for the amount of time spent under the vehicle I think would be a huge deterrent to any thief.
Like any anti-theft device. they are all deterrents and are in installed to put a thief at a higher risk of being caught.
I personally think that thieves would simply move on to another car without a security device in place as the extra risk could be avoided.
Another thing to note is thieves are using basic tools (chain tubing cutter, pair of wire cutters and a socket for bolts) the odds of the theives having a grinder with them to remove the plate is highly unlikely