If you find yourself in a situation where your Volkswagen is in theft mode, there are a few things you can do to try and get it out. The first thing you should do is check the owner's manual to see if there are any specific instructions on how to disable theft mode. If there are, follow those instructions and see if that gets your Volkswagen out of theft mode. If not, there are a few other things you can try.
One thing you can try is disconnecting the battery. This will reset the car's computer and may disable theft mode. However, it's important to note that this will also erase any stored data in the car's computer, so you may lose things like your radio presets and seat position memories. If you decide to go this route, make sure you have all the necessary information before you disconnect the battery.
Another thing you can try is to manually override the theft mode system. This can usually be done by opening the door with the key (not the remote) and then insert the key into the ignition. Once the key is in the ignition, turn it to the on position and then back to the off position three times. This should override the theft mode system and allow you to start the car.
If neither of these methods work, your best bet is to contact a Volkswagen dealership or a qualified mechanic. They will be able to diagnose the problem and, if necessary, disable the theft mode system