Cedric was dressed in a fancy suit while he sat in his car. Adrianna would ride with Ayanna and Ray to the event while he would arrive separately. Cedric was worried that something might go wrong during the auction that could harm Adrianna and the baby, and as a result he increased the security. They would pretend to be there for Ayanna, but in truth they were there for Adrianna's protection.
As the Reyes Heir, Cedric was not supposed to arrive early, as a matter of fact he was scheduled to arrive just a little bit before his parents and in-laws. He knew from Adrianna's message that she, Ayanna, and Ray had arrived at the event ten minutes ago and they were socializing with people.
The others had already arrived as well. Before the official auction there was a party where businessmen and socialites, as well as some actors like Eric, could mingle with each other. Relationship building was quite central to events such as these.