Do Pardons Cover This?

From what I've read, preemptive pardons remove the ability to prosecute for crimes before the date of the pardon. Otherwise, the individual pardoned is free from punishment for all their criminal activities to that point. What about criminal culpability for refusing to expose others involved with the crimes, or perjury for refusing to answer questions, or testifying? How about any monies acquired during the possible crimes committed during the time before the pardon? What is acceptable for the pardoned individual to keep? How about public pensions? Are constitutional protections removed from those pardoned because they accepted they are criminals?

This is a little mind boggling. Those accepting a preemptive pardon basically gave up the rights, face the possibility to be ruined by constant demands to testify, and any funds from profits from their ill-gotten monies are not protected from seizure. They've become a non-citizen, and what's to keep them from being deported? They accepted their fate, and their crimes in the past don't have to be proven. They're the worst of the worst, and any citizen that feels threatened by them can have a restraining order against them, refuse them any service, and demand they have no access to certain public facilities. 

I can see where those pardoned can now be the targets of prosecutors. Prosecutor have everything to gain from constant pressure for information, and judges can refuse relief from the court due to the fact the individual has accepted their guilt. They're now responsible to society to help prevent their crimes from happening again. If they won't cooperate, they're now involved with crimes not covered by their pardon.