Airport Parking at BQN airport in Aguadilla?

I am flying out of PR for a few weeks and I see there is a small parking lot at Rafael Hernandez airport, but the prices add up to about $18 per day.  Does anyone know of any cheaper parking in the area?  If I have to leave my car at home and take a cab to the airport, I guess I can do that too, but not having a lot of luck even finding taxi's in the area of Isabela.

Curious how you guys normally shuttle in and out of the airport?  Just bum a ride from a neighbor?

If you let the parking attendant at the bqn airport lot know you want long term parking the rate is much lower. I haven't done it for a few months but last time i did the rate was around $7-8/day so not too bad.

Thanks so much!