Foot brake pedal & radio presets weirdness!

Hey all,

I had something very odd happen on taking my Superb out earlier today (it's a 2.0TDi DSG). When I put my foot on the brake before pressing the start button, the pedal was evidently in a higher position than normal and there wasn't the usual amount of 'give' when pressing - it felt really stiff. This oddness was confirmed when the car didn't start but the ignition came on. I released the pedal, tried again and the same thing happened. I then gave the pedal a bit more of a push and it started. I just put it down to a glitch.

However, I then noticed that ALL of my DAB presets had disappeared!! The latter I've heard is quite common with owners, however I thought it odd that it coincided with the brake doing a weird thing also.

Strange coincidence or the sign of something else?