As long as there was water in the tank, I don't think there would have been any problem?
If the pilot blew out during travel, the igniter would have just tried to light after about a dozen tries and then the solenoid should have shut off the gas and then you should see a check light for the WH.
The gas 'should' not have kept flowing with no flame... If it did, then you have more problems with the system..
Since gas does not seem to work now, I can't really say? There are a fuse or 2 in the WH compartment itself?
Dunno... But, good luck with it! Mitch