we had a similar issue at my local grocery (manager thought he should not have to walk an extra few feet - as he was the boss)

Funniest thing I ever saw was an older woman pull in her minivan and let the ramp unfold - right into his wee sportscar. When the polics showed up she turned on her best "sweet little old lady" charm and declared "Why I never knew cars were even allowed to even park in the loading zone of a disabld parking space; was his car hurt?"

My husband and I high fived her in the dairy aisle -and she declared "that ought to teach the little bastard!"

The grocery manager got nailed with a big ticket and towed off to impound - and she was found not liable as he was illegally parked. Go grannie!!