They’re also hosted entirely in Germany, and really transparent about how many government requests they receive, most of which they outright deny.
Also, you can pay by literally mailing them cash, which I find mostly funny, but it does allow for true anonymity.
One other thing here is that the sensitivity of the detection is actually decreased with repeat attempts. This is pretty standard.
The reasoning here is that people will check after the first failure. And if they then send the close request again, the car will try a bit harder. Maybe it’s just some bit of oversized luggage that can be pushed down.