I realise that this may be an alien concept to most RS4 owners and I risk being asked to leave the forum for even considering to use the cruise control function!

I live in a part of the country where we currently have a lot of those avergae speed cameras in place and could really do with making sure I don't accidentally go above the indicated speed limit. It doesn't take much adjustment of the loud pedal for this to happen.
Just because the car has the cruise control stalk, does it mean it actually has the cruise control functions? Have I missed something obvious in the manual?
Aleks