Ugh I'm sorry you're having such a rotten day! PP is just out to upset everyone lately, aren't they? And at my post office, I don't know WHY I keep going to them, they seem to feed off of other's misery!
I have done the purse thing before, although for me it was leaving it on top of my car hood where I had just cashed my check from work, to pay the rent..I was out several hundred dollars, never found it.
We just have to take it one thing at a time, and remember there must be better days ahead!