Building was shuttered in September, after workers found fissures in two steel beams that support the bus deck and rooftop park.
The Wednesday night concert, which didn't wrap up until 11 p.m., forced the Valley Transportation Authority to add 11 extra after-hours trains to accommodate concertgoers.
Sound Transit's Peter Rogoff and King County Metro GM Rob Gannon met Monday after rail and bus service to and from the SeaTac/Airport station was interrupted for about 30 minutes Saturday at the request of Port of Seattle law enforcement officials.
The railcars have features designed to reduce deaths and injuries, such as energy-absorbing crush zones. Metrolink had said those features reduced the carnage in February when one of its trains struck a pickup truck that mistakenly drove onto the tracks near Oxnard. The crash killed the engineer and injured 27 passengers.