It is okay for someone to be less organized than you. Cellphone chargers are forgotten and even wallets can be left and for a certain breed of people it never seems like a big deal. A lot of people are like that and really, that's fine, though I would much rather be like you!

However, there is nothing fine with a lack of respect and responsibility. Using your money for a purpose outside of the one you specifically assigned is disrespect. If he decided that he would rather drive his car, then he could have at least given the money back to you. Not being on his toes to make sure that he can receive you when you arrive and provide warmth and shelter is disrespect.