Two off duty Secret Service agents, on their way home from a party at a bar, drive their car through police tape and barricades where their colleagues were investigating a possible bomb. And, while supervisors on the scene suspect that the two agents are intoxicated they are sent on their way without a breath test. No ramifications from driving into a sealed investigation scene and then actually put back into their car to drive home. An onlooker would conclude that the Secret Service belief is that their people get preferential treatment.