Free parking is available at the Denver Marriott DTC (there is a charge for Valet Parking) and the Hilton Gardens Inn. The Office Park across the street will be charging $10.00 a day this year if you want to park your car in their lot. The attendants will be there handing out parking passes on Friday until midnight, Saturday until midnight and Sunday until the convention ends. There will be NO OVERNIGHT parking in Office Parks lot. Cars in violation of this will be towed. Getting to the convention early makes even more cents…I mean sense.