For those of you who are good at math

[darkshark]

i recently got a speeding ticket, and im about to go to court to fight it, the officer wasnt using radar or a laser, he only judged my speed by eye, so here are my facts....

car model: 1994 VW Jetta
0-60: 10.1 seconds
quarter mile: 17.6 seconds (a quarter mile is 1320ft)

From H street to the L street stop sign is ~1200ft,
The officers siren, went on at ~750 ft (pulled over immediately)
there is also a 4% downward slope thats ~300ft long
4% grade slope adds 2 mph/s to my acceleration

i need to know my approximate top speed from the beginning of H street
to about 750 ft, if you need any other information to figure this out ask meh!!
he said i was doing 65, but i really dont think i was =P any help would be great, cause math is my worst subject =/

and heres a map if it will help http://img206.imageshack.us/img206/9619/mapjj8.jpg