Temporary parking at low cost airport parking
 

Hi everyone,
I'm not sure this is the correct place for this, please move it where it belongs if in need to.

My girlfriend and I are are planning an overland from Italy to Portugal.
We have 2 weeks only and I want to leave the van at the airport parking in Oporto and go back to collect it after 10 days.
Did you ever left your vehicle (we have a VW T3 campervan) at the airport?
I left the car few times but never left the van. I will have the rear door bike rack with 2 bikes and other stuff on the roof racks.
I was thinking to store everything inside but I don't know if the rack and the bikes fit in the van.
Do you have any suggestions? Should I message the parking people or should I just go there?
As long as I have a flight ticket number they should be ok with accepting my car?!?!

Thank you