I don't think the live vaccine is approved in this country - so I doubt that care would have been taken with the correct storage facilities (ie refrigerated, as they're supposed to be refrigerated in the mail as well)
Also - I thought you were supposed to give a certain amount of time between antibiotics and vaccination - the antibiotics are surely going to leave your birds in a weakened state, their guts will be susceptible to infiltration due to lack of gut flora decimated by the antibiotics
JMO