The Feds will take a long time to investigate and there will be no action prior to the election. How about the state GOP or RNC legal team and a letter copied to the county commissioner or local Supervisor of Elections copied to Obama campaign and the FEC. Point is, get them to halt the activity.
Sad thing is, the pastor will likely have his church trashed. Tell him to install some security cameras to document the potential BHO thug traffic.