Crazy-in-love CAMERON DIAZ tramped BevHills in search of the perfect gift for rocker boyfriend BENJI MADDEN – finally snapping up a pair of mega-pricey designer sunglasses! Said My SpyWitness: “After buying the sexy shades, Diaz had ‘em wrapped – then headed out the door and across the street, when … HONK! … HONK! … ‘Hey, lady – move, dammit!’ A car full of teens in an open-top convertible suddenly barreled down the street, honking and yelling at the star as she shrieked, ‘Slow DOWN, for chrissakes!’ Furious as the car slowed and the jerks sassed nastily, Cameron flipped the bird – then unthinkingly flung the only thing at hand: The case containing Benji’s big-buck$$$ sunglasses!” They landed in the back seat, the teens gunned it – and Cameron’s jaw dropped when she suddenly realized the sheer lunacy of what she’d done! So … did she scream, cry, collapse in a heap? Said the source: “Cameron called a friend, started laughing hysterically, and said, ‘I just gave a bunch of kids a VERY expensive gift!’”
