Beware Customs!
Abbeville doesn't have any. In fact, when I've been to Abbeville, there's been nobody about at all - just a notice to put the landing fee in the box before you go.
If you are unlucky, you will be accosted by French "Flying Customs" and have your aircraft impounded, unless you'd notified the relevant authority in advance (usually 24 hours ahead). Don't make the mistake of assuming that the EEC means "no customs needed".
Abbeville is a delightful town - I'd always walk into town, myself.
Mind you, I like Deaville, Trouville, Honfleur, Reims Prunay, and even Calais and Le Touquet.