That's bad. You don't want to dry it, you want to remove the water BEFORE it has a chance to dry out.
If you just dry it out, the mineral residue from water will be left on your glasses.
More than that, mineral crystals are incredibly abrasive so next time you try to clean the glasses they will be abrading and destroying your perfect glass surface.
For starters, I have responded to a comment from a user, not to the submission.
And second, using distilled water to clean your glasses must be strong contender for least practical glasses cleaning technique.
Blow the water off
vs
Find that jug of distilled water (make sure there is one at work and at your parents in law), then rinse with it (you can do it, hold the jug in one hand and the glasses in the other, don't use all the water), then use the hair dryer on cold to dry your glasses.
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If you need distilled water and hair dryer to do it the result will be permanently dirty glasses, not clean ones.
If you just dry it out, the mineral residue from water will be left on your glasses.
More than that, mineral crystals are incredibly abrasive so next time you try to clean the glasses they will be abrading and destroying your perfect glass surface.