I recently was cited for speeding just outside of Rockford, IL. The road I was traveling on, which I've traveled numerous times over the past couple of years, had a recent change in the posted speed limit from 55 mph to 45 mph. I was not aware of the change, but was advised by a friend it occurred within the past few weeks. The citation I received states I was going 62 in a 55 with an offense of speeding 15-20 over the posted speed limit. I am debating whether or not I should fight the ticket, or just pay the ticket and go to traffic school and receive court supervision. I've been advised that the ticket could still be amended, making it a lesser offense of 5-10 over, but not changing the fact that I'm guilty of speeding. Does this error make it worthwhile to contest the citation?