first car, first speeding ticket

i got a pulled over.. for the first time EVER. i've been driving for over 8 years and i get a speeding ticket four days after getting my car. the whole situation was ridiculous. the cop showed me the radar and said you were doing 90 in a 60 zone. what?! the most i could have been doing was 80. according to my dad, there's a hill and that's where they stand all the time to fill their quota. so the cop gave me my ticket. he said he's reducing it to only 15 over the limit rather than 30, so i won't be given any demerit points (for 30 over the limit it's 5 points). ah, boo. at least the cop was cute..