D.C. Mayor Marion Barry read yesterday's paper and found, to his distress, that the automobile license bureau was not planning to stay open on the weekend to sell renewal stickers for 1982 to more than 100,000 laggardly car owners. Result: Three offices will be open all day Saturday to help the motorists meet the April 1 deadline.

Barry's communications office announced yesterday that the Municipal Center renewal headquarters at 301 C St. NW will be open from 8:30 a.m. to 6 p.m. to deal with unpaid parking tickets, new applications and renewals. Cash, checks or money orders will be accepted.

Two of the three satellite offices will be open from 9:30 a.m. to 6 p.m. to accept payments (by certified checks or money orders only) for overdue tickets as well as for renewals (which may be paid by personal checks or money orders, but not cash). The two offices are at Carter Barron fringe parking lot in Northwest Washington and the Fort Dupont ice-skating rink in Southeast.

The office at the Northeast auto inspection station will be closed.

The communications office also said Barry had ordered that anybody waiting in line for a renewal at the scheduled close of business next Monday, Tuesday or Wednesday would be served.