Sharraxaadda

Many of the bike racks in front of Legal Seafoods and Clover on Main St have these signs on them - the signs have been there for at least a month. They have the City of Cambridge seal on them but look non-standard and have a really non-specific days-of-the-week date range on them.

What’s the deal with these signs? Are they current/active? Given the demand for bike parking in this area, it would help to remove them if they are out of date, or at least be more specific for when a bike parking ban is in effect.