Could I make a little gun and just walk around through the parking lot and aisles of the supermarket and freeze all the carts in place?
Could I make a little gun and just walk around through the parking lot and aisles of the supermarket and freeze all the carts in place?
I always assumed it was a powerful magnet that was buried in the parking lot. The magnet triggers the lock. That seems the cheapest, lowest cost way. They have locking carts for over 30 years so it is unlikely to be a new technology.