A driver who allegedly stole a vehicle yesterday morning crashed into a sign on Route 7, closing the exit ramp.  The incident happened shortly before 8am near the ramp to I-84 eastbound from Brookfield.  State Police say 56-year old Samuel Lopez Senior stole the Ford F150 from White Street.  Police say a person who knew the owner followed the truck on to southbound Route 7 and saw it crash into the onramp sign.  Lopez was held by several passing motorists until police arrived.  Lopez was charged by State Police for operating with a suspended license, failure to drive right and evading responsibility.  He faces additional charges from Danbury Police.