Basically they are putting restrictions on how much money you can withdraw from the bank per day if I'm not mistaken, no more than 1000 euros, on the other hand if you pay with more than 1000 euros for a service or, good you could be fined up to 2500 euros and the tax autorities have the right to investigate you if the case arises, the thing about the radars that you mention is something very common here, they are everywhere, also aerial helicopters for motorcycles, Spain is on its way to being a totalitarian state.