Ive never heard of using vinegar before???
I have used a very mild dish soap and water solution though but you need to wipe all of the leaves of with a sponge every day and wait until its dried of and then spray the plant down with clean water.
As for vinegar and dish soap being sprayed onto the plants and then being put back under lights i can only assume that you have burnt all of your leaves and the acid in the vinegar has played its part to.
I may be wrong about the vinegar for all i know but i can tell you this i would never spray vinegar on my plants whoever told me to.
I use trays of molasses and water to catch flies.
They fly into it and obviously can never get out again eventually they will be eradicated.
They cannot resist dishes of sweet liquid,natures been catching flies in amber since prehistoric times works for me to.
All i can suggest is that you spray them with clean room temperature water and clean all the leaves with a damp cloth or sponge carefully and then flush them through until the water out the bottom of the pot runs clear and not yellow or brown then leave them in the dark for 24 hours but not cold and then clean them once more again.
Use a fan to dry the leaves of before you put them back under the lights again.
Also check that your tin foil is not reflecting heat back onto your plants.
Tin foil sux creates hot spots and if you hang the tin foil the wrong way around its even worse.
If you must use tin foil make sure that you hang it with the dullest side up and the shiniest side stuck to the wall.
Hope they pick up for you all this info is just what i would do if it was my plants.