I believe it was Dwayne who quoted some thing like this to Keeotee:
One thing to consider is that waxes and sealants are "sacrificial" barriers and not, despite some companies claims, "inpenatrable" barriers.
Highly acidic contaminants (bug splatter, bird bombs) or highly alkaline contaminants (rail dust, hard water, or water containing a strong alkaline soap solution) can damage even the best sealant when alowed to cook in the sun on a hot painted surface.
If even the clearcoat which is a fully cured urethane coating can be etched or damaged by these things if exposed to them then how much more so can a microscopic wax or sealant layer be damaged if exposed to the same elements.
Don't be discouraged. You may need to start over by completely cleaning your paint with the vinegar solution. Wash with a car wash soap to nuetralize the paint. Try using detailing clay to remove anything above the surface. Try a mild paint cleaner and only go more agressive if necessary.
Once you obtain a flawless finish go ahead and start adding protective wax or sealants.
Dwayne