I recently put in my two weeks notice and was walked out. I was threatened by my boss that he would get me. I think he is referring to training.

I put in my two weeks and They walked me out three days later.. My boss threatened my and stated i will get you. I think he is talking about training i attended. The training plus airfare plus hotel. I have used the training and completed the project that it was for before i left. My question is will i have to repay everything if they send me a bill? The company does have it in the handbook that they will force employees to repay any training if they leave after one year of the training. Should i contact a lawyer. This is something that has occurred in the past is why i am asking for this company. I am very worried.