The strike lasted 11 days before a breakthrough in talks occurred late Easter Sunday. Membership will still have to vote on the contract for the protest to officially end.
Employees at the North Adams store walked out about 1 p.m. on Thursday; store managers ushered customers out and locked the doors.
The union local representing some 2,000 area Stop & Shop workers voted Sunday afternoon to authorize a strike.
The latest offer presented to the federal mediator on Tuesday was voted on by the paratransit union membership at a meeting and was approved.
The work stoppage has affected the regular Berkshire Regional Transit Authority bus routes, causing havoc for people trying to get to jobs, schools and other appointments.
In a statement, the Berkshire Regional Transit Authority said the paratransit service will not operate during the strike.