The chocolate should be okay. I mailed little chocolates in a plastic Easter egg (long story!) from Pennsylvania to California, and the recipient said they didn't get melty or anything!
"And death is at your doorstep
And it will steal your innocence
But it will not steal your substance
But you are not alone in this"
“My ability to turn good news into anxiety is rivaled only by my ability to turn anxiety into chin acne.” - Tina Fey