Remote Key - Interference

[X Foomph]

Every other day I make my way to my local bank for business deposits and encounter that the remote key fob will neither lock or unlock the car. This happens within a 10 metre (30 feet) car parking area, street side of the bank. Inevitably I have to use the key to lock / unlock the car which is inconvenient not to mention annoying.

I can only think that the bank has some sort of security gizmo dictating terms there. Maybe I'm unlocking or interferring with the banks vault or some other electrical field. Really weird as this dosen't happen anywhere else except for outside this one particular bank. There are various retailer shops either side of the bank.

I realise that their is probably nothing I can do about this, however I'm intrigued each time this happens.

Has anybody else had similar experiences ? ?