Queue at the Bank

Coming back to the office at lunchtime, I walked past the Bank of England. I also walked past a great long queue of people that snaked along the side of the B of E up Cornhill and round the corner between the Bank and the Stock Exchange. There must have been a few hundred people in the queue, both men and women, mostly in suits but with the odd motorcycle courier thrown in for good measure.

My first thought was 'what the hell?', which was quickly followed by the revelation that it must be something to do with the Budget. That, however, is where the revelations stopped and I'm none the wiser as to why all these people were queuing up round the side of the Bank of England.

Any of you have any ideas?