Dublin Castle Friday 11th

Hi there, Did something really stupid last Friday evening - drove off with my bag on top of the car. Didn't realise until I got home. The bag was a small black suede clutch bag containing some bits of make up (benefit blusher, a trio of lipsticks and a box with eye shadows), the business card of someone I met that night and most importantly, my iPhone. The phone is a black iPhone 4 with a clear cover. I was parked in the lower courtyard of Dublin Castle so think it probably came off my car there. Otherwise, it could have been Dame Street, Lord Edward Street or Christchurch area. And in all likelihood, the contents of the bag are scattered. Obviously, it's the phone I'm most interested in getting back - I don't think it's of any value to anyone else because it's locked with a PIN code. Any assistance most gratefully appreciated - 0873690758.