So, unless those items were listed on the warrant, this was merely a strong armed robbery. That could change things a bit.
I always believed and LEO friends have confirmed that if it wasn’t listed in the warrant it could not be used as evidence against you. If it was blatantly illegal to possess, e g an unlicensed hand gun in NYC, it could be confiscated but not used to charge you. I hope Trump’s lawyers are better than Powell and Giuliani.