First ever ticket, need advice.

Hi all, I received my first ticket on Monday for going 52 in a 35. I deliver food and I was pulled over on my way back to the store. The route I took, circumvented the posted speed limit signage and the road I turned back onto, where it was 35 is incorrectly marked on my car and Apple Maps, as 45. Still speeding yes but I wanted to see if there would be any evidence I could collect to make a case for me believing it was 45 instead of 35 on that road. The side of the road I was on does have a posted sign but it was mostly covered by a tree at the start of the road after I drove back and took a look at it but again when I turned onto the road it was from the street just before I am able to view the sign to begin with. Thank you for any advice about this!