RFID windshield tags can help prevent theft by ensuring that only authorized users are able to access a vehicle. The unique identifier of the tag is programmed to correspond with a specific vehicle and user, and the access control system will only grant access to the vehicle when the correct tag is presented. This means that anyone who does not have an authorized tag will be unable to enter the vehicle.
In addition, RFID tags are difficult to duplicate or forge, which makes it more difficult for thieves to create fake tags in order to gain access to a vehicle. The tags can also be programmed to expire after a certain period of time or after a certain number of uses, further reducing the risk of unauthorized access.
Furthermore, some RFID windshield stickers are made of fragile paper or with incision on it's surface, the RFID windshield labels will be tear apart if someone try to remove it from the windshield, and then the RFID tag will be broken and not work.

Overall, RFID windshield tags provide a highly secure and effective means of preventing vehicle theft, and can provide peace of mind to vehicle owners and operators.