Genderson: I told you not to take the turnpike.
KRAMER: I thought we would blend in.
Genderson: If we took the Palisades, this never would've happened.
KRAMER: Then we would've had all that bridge traffic.
Genderson: Ah, just drive.
I don't like took in the conditional sentence. Instead of took it should be had taken. What is it: a different grammar structure or just a colloquialism?