i don't think it's relative to ask if you've every broken the speed limit
it would be a more pertinant question to ask if yuo've ever broken teh speed limit in a built up area (30 mph stuff) and the like

in which case, no, i broke the limit this morning because my road is a 20 mph road now and i'm sure i must have been doing at least 21 at 5.45 this morning