Also I read somewhere that when they are doing radar it has to be linear/straight line, is this true?

Where the cop was standing with his radar and where my car was traveling there is a slight curve in the road.

Unfortunately I got nabbed in a speed trap this morning doing 79 in a 50 zone. The speed along this highway (hwy 50) drops from 80 to 50 suddenly as you approach the town of Palgrave. I was actually clocked at 80 something but he reduced it a small amount so that it would be 3 points instead of 4. W...