"When those you find from whom 'tis meet to ask,- for aid apply;
Theirs is the sin, not yours, if they the gift deny. "
If you meet with those that may be begged of, you may beg; (but) if they withhold (their gift) it is their blame and not yours.
Yes, Ahalya waited for only that pure soul raghuvanshi and not for any form of god. Ram asked "I don't know whether I am the one but if I refuse to go and turned out to be the one she waited". A soul touching dialogue.
Help the needy as long as we can. For the person who got the help, the saviour is simply the god irrespective of who is he/she. So don't wait for the god to come and act as long as we can behaviour in the same fashion. Again its the words of Ram to Jabali. He preached what he practised that is what differentiates Ram from most of us.