A search warrant is an investigative tool, and an arrest is not a conviction. Jails in every city and county in this country are filled with people who haven't been convicted of anything, but who are awaiting trial for holding a few ounces of weed.
There are certainly folks who are offended by police abuses and forfeitures all the time. But there are also folks who ignore those abuses most of the time, but take selective offense when the suspect is someone they like.
Perhaps, but I have a suspicion the government might try to prosecute this person for having insufficient reserves even if the sole reason for his shortfall is that the government took his money in the first place.
Read the affidavit and get back to me. They took every scrap of paper, every possible record. Everything that would be needed to continue the business and to defend themselves.
Weed is contraband. Silver and gold are not.