George,

If the temperature gauge gets to red, that is bad news.

Yes, it is possible that nothing was permanently damaged, but it is also possible that you overheated your engine beyond its tolerance limits.

And the fact that it has happened repeatedly--bad news.

Have your car towed to a competent shop and have the problem corrected. Be prepared because they may tell you that they cannot correct the problem, 'cause your engine is beyond hope. If they are able to find and correct the problem, and they say that your engine is still viable, make sure that you have them do an oil change.

From now on, if you engine ever overheats, don't drive it 'till the problem is corrected. And, after it is corrected, watch the temperature gauge for the next week, to make sure that it actually was fixed.