I unlocked the ad for you. I did this only because it was at the top when you posted and cannot and will not make a habit of this. However, Raptor22 did nothing wrong when locking it.
It is hard to tell one person that he is getting locked for bumping an ad for a 1/2 hour or 1 hour bump but where is the line drawn? 6 hours, 24 hours, 36 hours? The rule is 72 hours and we are asked to enforce it as written.
I hope you can understand the reason he did lock it as you should of just edited your original ad to reflect the change and hope you will keep this in mind in the future.
We love this place too and that is why we have chosen to donate our time to make sure that things are fair for everyone here and that people operate with honesty and integrity, help those in need when deals go wrong, help settle disputes and so on. We are not here just to lock ads or look for rules violations.