Hi Tim:
Welcome to our board. That question was never asked on our other board. It's a good one
You'll have to "pull the carpet back" and off the tack strip after some furniture is moved around. To do so, grab a pair of pliers and pull from a corner to release the stretch. Unfortunately the carpet padding underneath may be perimeter glued(about 12" from the wall)--but maybe not. You could cut a square out of the padding in several areas and do a simple DIY moisture test if it won't come up easily.
Now, if the carpet has to go back permanently it will have to be re-stretched. There are new sealers on the market for problem slabs but they are not inexpensive.