(WGN-AM)- The widow of a parking attendant who died of a heart attack while working outside Toyota Park in Bridgeview sued the stadium and its owners Wednesday, saying it took almost half an hour for an ambulance to arrive.

Lawrence Bus, a 53-year-old employee of Standard Parking who lived in Plainfield, collapsed while working in the parking lot outside of the B96 Summer Bash concert in June 2007, said John Winters, the widow's attorney.

Bus' co-workers promptly contacted stadium security by walkie-talkie to send medical help, but neither emergency medical personnel nor a defibrillator device could be located at the stadium, Winters said.

An ambulance sent by the Bridgeview Fire Department was given faulty directions to Bus' location and had difficulty navigating concert traffic due to a lack of emergency lanes, he said.

"It was like nobody knew where to go, what to do, who to call," Winters said.

Paramedics were unable to resuscitate Bus when they arrived, and he was later pronounced dead at a local hospital due to heart failure, Winters said.

Bus is survived by his wife, Kathleen, and two adult children. The suit, filed by Kathleen Bus, names Toyota Park, the Village of Bridgeview, CBS Radio, B96 and stadium operator Andell Holdings as defendants, charging each with negligence in Bus' death.

A representative for Bridgeview directed questions to a manager at Toyota Park, who could not be reached Wednesday night.

(The Chicago Tribune contributed to this story)

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