I have added that to my "tips for next time" list. So far I have:
1. Bigger bag so have room for the goodies they give away to bring home
2. Bag big enough to hold floor pump so have my own handy for day 2 bike prep
3. Put bike on truck well before I decide to head back so bike gets there BEFORE me
4. Bring baby wipes or other cleansing cloth for self and bike