i daily drive thru NAIA 1 and NAIA 3.. i also live in paranaque.. never been pulled over for coding.. as far as i know.. roxas blvd lang ang may coding within paranaque area..
NAIA 1 area, NAIA 3 (st andrews ave - going to skyway - resorts world).. even in the old domestic airport (where the cebu pac office and old patts college is located) wala din..
since NAIA1 ang sundo.. best route is from highway.. exit sucat... then dr.a santos ave (old sucat road) then NAIA 1 na... then same way back.