Standard aéroport, informations sur les vols : 0 891 67 32
Police aéroport : 03 28 55 08 60
Douanes : 03 20 49 67 31
Objets trouvés : 0 891 67 32 10
Litiges bagages : 03 20 49 68 32
Navette aéroport-Lille : 0 891 67 32 10
Office du tourisme de Lille : 03 20 21 94 21
I would give the police or douanes at Lille Lesquin a call and ask if they would exceptionally allow you to land at Compiegne directly, on conditions that you send them flight plans, your phone number where you are reachable while in France, passenger lists with passport numbers and birth dates etc...and all other information they require in advance to the e-mail address they like CC-ing UK immigration.
The worst thing that can happen is that they say no.
Alternatively, you can join Schengen
