EE1 arrived at Hanson Harding Street, checked out a 775 haul truck and drove it over to the restroom. EE2 noticed EE1 slumped over steering wheel. EE3 stopped to check on EE1 and EE1 was unresponsive and EE3 called 911. Ambulance crew gave EE1 medicine to revive EE1, then took EE1 to the Hospital.