There is a "timeout" for engaging but not going somewhere else and engaging other players (basically speaking). That's the thing. Also I think such "timeout" would need more than 24h. Your ship is on repairs and it will take time to bring it back in one piece. Until then - use your fighter/bomber/transport/etc. But once again - it's impossible to implement then the whole talk about "timeouts" does no good.
It would bring strategic element... people will on the look for opponents traveling on battleships. Crippling enemy defenses by taking out lone battleships will actually mean something in game, not just in RP as it usually happens.