I do not advise anyone to use the word "pardon" when speaking Romanian. It is not a Romanian word. It came from French about 200 years ago when French was popular in Romania and it was used mostly by not too bright people to give the impression that they spoke French. The word is still used, but it makes the speaker seem impolite or even ignorant.
If you want to apologize for some minor inconvenience you can say scuze, scuzați, mă scuzați, vă rog să mă scuzați etc.