The Crown Victoria is hit in the side at the beginning, yet all of the interior shots show that neither the side nor canopy airbags are deployed.
Route 7 in New York is in the Eastern part of the state, while Lockport is on the other side of the state in Western New York. Route 7 never runs anywhere near Lockport.
When Hotchner is informed that Schrader and his accomplice were heading North, he assumed that they were headed for Canada. To reach Canada from Lockport, NY they would have traveled West.