Quite often UAL would say they are short of fuel,but not declare any emergency.Looks like CPA are trying the same trick.In the UK I would treat that that piece of paper with a question to the aircraft,are you declaring an emergency.If the answer is no then it gets treated like all the others.If the answer is yes then squawk 7700 and you will be on the ground ASAP.No delay in the UK is 20 minutes or less holding and after that you give EATs.This all stems back to the DC8 that crashed in New York having run out of fuel,after extensive holding and go-arounds without declaring any emergency.