The high street bakery chain says the stores were closed to protect staff and customers.
Plans to open a 24-hour gym and a Greggs near Scarborough get the go-ahead from councillors.
Lewes MP James MacCleary says the new drive-to site is causing major disruptions for locals.
James MacCleary says the weeks of disruption for motorists are "completely unacceptable".
Long queues have been building up on the road between Falmer and Lewes as work is carried out.
Greggs is removing display cabinets in London stores that have been most severely hit by shoplifters.
The Greggs store will replace the car wash at Walnut Filling Station on Barnsley Road.
The Greggs boss says there is "no doubt" weight loss jabs have led it to having a healthier menu.
It will be increasing the price of its breakfast meal deals, with a smaller increase in the cost of its biscuits.
