Any Danbury resident who left their car parked on a City street after 6am Tuesday, could have a tough time getting out this morning.  Cars were towed yesterday in an effort to have a clear path for snow plows.  Danbury officials called for a Level 1 snow emergency Monday night, alerting residents that as of 6am, there was a ban on street parking.  In order to stem off another surprise for people who are fined for not clearing sidewalks, Mayor Mark Boughton said in a 311 Alert call to residents that it's not the City's responsibility.