The aldis lamp signals are hard to remember, hard to see and you have to be in view of the tower to see them anyway...not always possible at certain holding points....and whilst they may be able to signal to you 'return to your starting point' they cant tell you via what taxyway - given the a/c behind you - you are stuffed. So I dont think the aldis lamps in this situation will help ....but its a good thought...
If you have done a night rating your instructor should have ensured that you have seen the aldis lamps...(which are more useful in the air than on the ground...) if you havent next time you are flying at night ask the control tower to use the lamps (I do this as routine on every night qualification I teach), and dont forget a good many control towers are happy to have a quick visit from a pilot who wants to see what on earth is going in the 'small box'!
Hope this helps.